High-speed optical fiber screening mechanism

Abstract

The utility model relates to a novel high-speed optical fiber screening mechanism which can solve the problems that high-speed optical fiber screening and guiding operation is complex, efficiency is low and optical fibers are scratched due to a traditional multi-piece wheel fiber winding mode, and the optical fiber screening quality is improved. Comprising a left traction component (100), a right traction component (200), an upper screening wheel set (300) and a lower screening wheel set (400). The upper screening wheel set (300) and the lower screening wheel set (400) are located between the left traction component (100) and the right traction component (200). The left traction component (100) comprises a fiber inlet guide wheel (101), a left traction mounting plate (102), a left traction drum wheel I (103), a left traction drum wheel II (106), a left traction wheel (104) and a left traction belt (105); and the right traction component (200) comprises a fiber outlet guide wheel, a right traction mounting plate, a right traction drum wheel I, a right traction drum wheel II, a right traction wheel and a right traction belt.

Description

Technical Field

[0001] The utility model relates to a novel high-speed optical fiber screening mechanism, which belongs to the field of high-speed communication optical fiber screening and provides a novel high-speed optical fiber screening mechanism, which can solve the problems of complex fiber leading operation and low efficiency in high-speed optical fiber screening and optical fiber abrasion caused by the traditional multi-wheel fiber winding method, effectively reduce the labor intensity of workers and improve the quality of optical fiber screening. Background Art

[0002] At present, the optical fiber received by the high-speed communication optical fiber drawing tower needs to be screened for tensile strength test, and only the optical fiber that passes the screening can enter the subsequent coloring, second set and other processes. In order to ensure a certain screening length (generally not less than 9 meters), the screening wheel design in the middle of the left and right traction mostly adopts the fiber winding method of arranging multiple wheel groups on the top and bottom. For example, the two optical fiber high-speed screening machines introduced in Patent 201820997769.9 and Patent 201420077338.2 are typical of this traditional screening mechanism.

[0003] This traditional fiber winding method has the following defects: the height difference between the upper and lower sets of multi-piece wheel groups is generally greater than 1.5 meters, and the operator needs to bend down and stand up repeatedly to guide the fiber. This operation is prone to collision between the human body and the equipment, and has high requirements on the operator and high labor intensity.

[0004] It usually takes 6 to 8 seconds for an operator to complete the up and down repeated fiber winding operation, which is inefficient.

[0005] The structural arrangement of the upper and lower multi-piece wheel groups makes the optical fiber path not on the same plane, and the optical fiber is in a spiral state. Especially at high speeds, the optical fiber shakes and is very easy to scratch the edge of the guide wheel, causing scratches on the optical fiber coating; reducing the optical fiber yield.

[0006] Therefore, it is necessary to design a new high-speed optical fiber screening mechanism that is simple, reliable, highly automated and easy to operate in response to the problems existing in the above screening process. Utility Model Content

[0007] The purpose of the utility model is to provide a high-speed optical fiber screening mechanism to address the above-mentioned deficiencies. It is a new type of high-speed optical fiber screening mechanism that can simultaneously solve the problems of complex fiber lead-in operation and low efficiency in various optical fiber screening processes, as well as optical fiber scratches caused by the traditional multi-wheel fiber winding method.

[0008] The technical solution adopted by the utility model to solve the above problems is:

[0009] A high-speed optical fiber screening mechanism includes a left traction component 100, a right traction component 200, an upper screening wheel group 300 and a lower screening wheel group 400; the upper screening wheel group 300 and the lower screening wheel group 400 are located between the left traction component 100 and the right traction component 200. The left traction component 100 includes a fiber input guide wheel 101, a left traction mounting plate 102, a left traction drum wheel 103, a left traction drum wheel 2 106, a left traction wheel 104, and a left traction belt 105.

[0010] The left traction component 100 is installed on the left traction mounting plate 102, the left traction wheel 104 is equipped with a transmission motor, and the speed is controlled by a PLC programmable controller. The left traction belt 105 is installed on the left traction drum wheel 103 and the left traction drum wheel 106. One side of the left traction belt 105 is pressed against the left traction wheel 104 to press the optical fiber. At the same time, the left traction drum wheel 103 and the left traction drum wheel 106 are driven to rotate through the left traction belt 105.

[0011] The right traction component 200 includes a fiber output guide wheel 201 , a right traction mounting plate 202 , a right traction drum wheel 1 203 , a right traction drum wheel 206 , a right traction wheel 204 , and a right traction belt 205 .

[0012] The right traction component 200 is installed on the right traction mounting plate 202, the right traction wheel 204 is equipped with a transmission motor, and the speed is controlled by a PLC programmable controller. The right traction belt 205 is installed on the right traction drum wheel 1 203 and the right traction drum wheel 206. One side of the right traction belt 205 is pressed against the right traction wheel 204 to press the optical fiber. At the same time, the right traction drum wheel 1 203 and the right traction drum wheel 206 are driven to rotate through the right traction belt 205.

[0013] The left traction wheel 104 and the right traction wheel 204 are respectively controlled to have different rotation speeds through a PLC programmable controller to generate optical fiber transmission tension.

[0014] The upper screening wheel group 300 includes two groups of guide wheels, namely, guide wheels D and guide wheels F, in the horizontal direction and an upward moving mounting plate 301 ; the two groups of guide wheels, namely, guide wheels D and guide wheels F, are mounted on the same upward moving mounting plate 301 .

[0015] The lower screening wheel group 400 includes three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C in the horizontal direction, and a downward moving mounting plate 401 ; the three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C, are mounted on the same downward moving mounting plate 401 .

[0016] The mechanism has two working modes, namely the horizontal "single-line fiber guiding" mode and the up and down "cross screening" mode.

[0017] In the horizontal "straight fiber drawing" mode, the upper screening wheel group 300 is located below the lower screening wheel group 400, that is, the three groups of guide wheels A, B, and C and the two groups of guide wheels D and F are arranged alternately, and the horizontal fiber drawing height H is adjustable in the range of 900-1200mm. The optical fiber passes through the guide wheel A, D, B, F, and C in sequence, which is easy to operate.

[0018] In the upper and lower "cross screening" modes, the upper screening wheel group 300 moves up 750-900 mm, and the lower screening wheel group 400 moves down the same distance synchronously, which can ensure that the optical fiber screening length is between 9-11 meters and meet the screening time requirements.

[0019] Guide wheel A, guide wheel B, guide wheel C, guide wheel D and guide wheel F are all single-piece wheel groups, which solve the problem of optical fiber scratching the guide wheel edge and causing coating damage in the state of upper and lower spiral fiber winding in traditional multi-piece screening wheel groups. Especially in the state of high-speed screening, it avoids additional damage caused by equipment reasons and improves the yield rate.

[0020] The tension sensor involved in the closed-loop detection control can be installed on any one of the guide wheel A, guide wheel B, guide wheel C, guide wheel D, and guide wheel F. There is no need for a tension sensor with a large range of multiple wheel sets. The range can be reduced to 1 / 3 of the original tension sensor, which improves the tension detection accuracy and reduces the device cost.

[0021] The one-button automatic switch from the horizontal "straight fiber guiding" mode to the up-and-down "cross screening" mode is achieved by moving the upper screening wheel group 300 upward and the lower screening wheel group 400 downward, and the up and down movements are synchronously linked to quickly achieve mode switching and improve screening efficiency. Compared with the traditional screening machine worker's fiber guiding method of repeatedly raising his head and bending his waist, this greatly reduces the labor intensity of the workers and improves the fiber guiding efficiency.

[0022] According to the above technical solution, the novel high-speed optical fiber screening mechanism comprises a left traction component 100, a right traction component 200, an upper screening wheel group 300, and a lower screening wheel group 400; the upper screening wheel group 300 and the lower screening wheel group 400 are located between the left traction component 100 and the right traction component 200. The left traction component comprises a fiber entry guide wheel 101, a left traction mounting plate 102, a left traction drum wheel 103, a left traction drum wheel 206, a left traction wheel 104, and a left traction belt 105. The right traction component comprises a fiber output guide wheel 201, a right traction mounting plate 202, a right traction drum wheel 103, a right traction drum wheel 206, a right traction wheel 204, and a right traction belt 205. The upper screening wheel group 300 comprises two sets of guide wheels, namely, guide wheels D and guide wheels F, in the horizontal direction, and an upward moving mounting plate 301; the two sets of guide wheels, namely, guide wheels D and guide wheels F, are mounted on the same upward moving mounting plate 301. The lower screening wheel group 400 includes three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C in the horizontal direction, and a downward moving mounting plate 401 ; the three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C, are mounted on the same upward moving mounting plate 401 .

[0023] According to the above technical solution, the novel high-speed optical fiber screening mechanism has two working modes, namely, the horizontal "straight fiber drawing" mode and the up and down "cross screening" mode.

[0024] According to the above technical scheme, in the horizontal "straight fiber guiding" mode of the novel high-speed optical fiber screening mechanism, the upper screening wheel group 300 is located below the lower screening wheel group 400, that is, the three groups of guide wheels A, guide wheel B, and guide wheel C and the two groups of guide wheels D and guide wheel F are arranged alternately, and the horizontal fiber guiding height H is adjustable in the range of 900-1200mm. The optical fiber passes through the guide wheel A, guide wheel D, guide wheel B, guide wheel F, and guide wheel C in sequence, which is easy to operate.

[0025] According to the above technical solution, in the upper and lower "cross screening" modes of the novel high-speed optical fiber screening mechanism, the upper screening wheel group 300 moves up 750-900 mm, and the lower screening wheel group 400 moves down the same distance synchronously, which can ensure that the optical fiber screening length is between 9-11 meters and meet the screening time requirements.

[0026] According to the above technical scheme, the guide wheels A, B, C, D and F of the novel high-speed optical fiber screening mechanism are all single-piece wheel groups, which solves the problem of optical fiber scratching the edge of the guide wheel and causing coating damage during the upper and lower spiral fiber winding state of the traditional multi-piece screening wheel group. Especially in the high-speed screening state, it avoids additional damage caused by equipment reasons and improves the yield rate.

[0027] According to the above technical scheme, in the novel high-speed optical fiber screening mechanism, the tension sensor involved in the closed-loop detection control can be installed on any one of the guide wheel A, guide wheel B, guide wheel C, guide wheel D, and guide wheel F, and there is no need for a tension sensor with a large range of multiple wheel sets. The range can be reduced to 1 / 3 of the original tension sensor, thereby improving the tension detection accuracy and reducing the device cost.

[0028] According to the above technical solution, the new type of high-speed optical fiber screening mechanism can automatically switch from the horizontal "straight fiber drawing" mode to the up and down "cross screening" mode with one key, which is achieved by moving the upper screening wheel group 300 upward and the lower screening wheel group 400 downward, and the up and down movements are synchronously linked to quickly achieve mode switching and improve screening efficiency. Compared with the traditional screening machine worker's fiber drawing method of repeatedly raising his head and bending his waist, it greatly reduces the labor intensity of the workers and improves the fiber drawing efficiency.

[0029] Advantages of the utility model:

[0030] The utility model provides a novel high-speed optical fiber screening mechanism.

[0031] Its guide wheels A, B, C, D and F are all single-piece wheel groups, which solve the problem of optical fiber scratching the edge of the guide wheel and causing coating damage in the upper and lower spiral fiber winding state of traditional multi-piece screening wheel groups. Especially in the high-speed screening state, it avoids additional damage caused by equipment reasons and improves the yield rate.

[0032] The tension sensor involved in the closed-loop detection control can be installed on any wheel group of guide wheel A, guide wheel B, guide wheel C, guide wheel D, and guide wheel F at will, and there is no need for a large-range tension sensor with multiple wheel groups. The range can be reduced to 1 / 3 of the original tension sensor, thereby improving the tension detection accuracy and reducing the device cost.

[0033] The one-button automatic switching from the horizontal "straight fiber introduction" mode to the up and down "cross screening" mode shortens the fiber introduction time in the screening area from the original 6-8 seconds to 2-3 seconds. Compared with the traditional screening machine's fiber introduction method where workers have to raise their heads and bend down repeatedly, this greatly reduces the workers' labor intensity and improves screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of a horizontal "straight fiber lead" mode of a high-speed optical fiber screening mechanism of the utility model.

[0035] Figure 2 It is a schematic diagram of the upper and lower "cross screening" modes of a high-speed optical fiber screening mechanism of the utility model.

[0036] Figure numerals: 100, left traction component, 101, fiber entry guide wheel, 102, left traction mounting plate, 103, left traction drum wheel one, 104, left traction wheel, 105, left traction belt, 106, left traction drum wheel two; 200, right traction component, 201, fiber outlet guide wheel, 202, right traction mounting plate, 203, right traction drum wheel one, 204, right traction wheel, 205, right traction belt, 206, right traction drum wheel two; 300, upper screening wheel group, D, guide wheel D, F, guide wheel F, 301, upper moving mounting plate; lower screening wheel group 400, A, guide wheel A, B, guide wheel B, C, guide wheel C, 401, lower moving mounting plate 401. DETAILED DESCRIPTION

[0037] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0038] See attached Figure 1 , Attachment Figure 2 A high-speed optical fiber screening mechanism includes a left traction component 100, a right traction component 200, an upper screening wheel group 300 and a lower screening wheel group 400; the upper screening wheel group 300 and the lower screening wheel group 400 are located between the left traction component 100 and the right traction component 200. The left traction component 100 includes a fiber input guide wheel 101, a left traction mounting plate 102, a left traction drum wheel 103, a left traction drum wheel 2 106, a left traction wheel 104 and a left traction belt 105.

[0039] The left traction component 100 is installed on the left traction mounting plate 102, the left traction wheel 104 is equipped with a transmission motor, and the speed is controlled by a PLC programmable controller. The left traction belt 105 is installed on the left traction drum wheel 103 and the left traction drum wheel 106. One side of the left traction belt 105 is pressed against the left traction wheel 104 to press the optical fiber. At the same time, the left traction drum wheel 103 and the left traction drum wheel 106 are driven to rotate through the left traction belt 105.

[0040] The right traction component 200 includes a fiber output guide wheel 201 , a right traction mounting plate 202 , a right traction drum wheel 1 203 , a right traction drum wheel 206 , a right traction wheel 204 , and a right traction belt 205 .

[0041] The right traction component 200 is installed on the right traction mounting plate 202, the right traction wheel 204 is equipped with a transmission motor, and the speed is controlled by a PLC programmable controller. The right traction belt 205 is installed on the right traction drum wheel 1 203 and the right traction drum wheel 206. One side of the right traction belt 205 is pressed against the right traction wheel 204 to press the optical fiber. At the same time, the right traction drum wheel 1 203 and the right traction drum wheel 206 are driven to rotate through the right traction belt 205.

[0042] The left traction wheel 104 and the right traction wheel 204 are respectively controlled to have different rotation speeds through a PLC programmable controller to generate optical fiber transmission tension.

[0043] The upper screening wheel group 300 includes two groups of guide wheels, namely, guide wheels D and guide wheels F, in the horizontal direction and an upward moving mounting plate 301 ; the two groups of guide wheels, namely, guide wheels D and guide wheels F, are mounted on the same upward moving mounting plate 301 .

[0044] The lower screening wheel group 400 includes three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C in the horizontal direction, and a downward moving mounting plate 401 ; the three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C, are mounted on the same downward moving mounting plate 401 .

[0045] The mechanism has two working modes, namely the horizontal "single-line fiber guiding" mode and the up and down "cross screening" mode.

[0046] In the horizontal "straight fiber drawing" mode, the upper screening wheel group 300 is located below the lower screening wheel group 400, that is, the three groups of guide wheels A, B, and C and the two groups of guide wheels D and F are arranged alternately, and the horizontal fiber drawing height H is adjustable in the range of 900-1200mm. The optical fiber passes through the guide wheels A, D, B, F, and C in sequence, which is easy to operate.

[0047] In the upper and lower "cross screening" modes, the upper screening wheel group 300 moves up 750-900 mm, and the lower screening wheel group 400 moves down the same distance synchronously, which can ensure that the optical fiber screening length is between 9-11 meters and meet the screening time requirements.

[0048] Guide wheel A, guide wheel B, guide wheel C, guide wheel D and guide wheel F are all single-piece wheel groups, which solve the problem of optical fiber scratching the guide wheel edge and causing coating damage in the state of upper and lower spiral fiber winding in traditional multi-piece screening wheel groups. Especially in the state of high-speed screening, it avoids additional damage caused by equipment reasons and improves the yield rate.

[0049] The tension sensor involved in the closed-loop detection control can be installed on any one of the guide wheel A, guide wheel B, guide wheel C, guide wheel D, and guide wheel F. There is no need for a tension sensor with a large range of multiple wheel sets. The range can be reduced to 1 / 3 of the original tension sensor, which improves the tension detection accuracy and reduces the device cost.

[0050] The one-button automatic switch from the horizontal "straight fiber guiding" mode to the up-and-down "cross screening" mode is achieved by moving the upper screening wheel group 300 upward and the lower screening wheel group 400 downward, and the up and down movements are synchronously linked to quickly achieve mode switching and improve screening efficiency. Compared with the traditional screening machine worker's fiber guiding method of repeatedly raising his head and bending his waist, this greatly reduces the labor intensity of the workers and improves the fiber guiding efficiency.

[0051] The novel high-speed optical fiber screening mechanism includes a left traction component 100, a right traction component 200, an upper screening wheel group 300, and a lower screening wheel group 400; the upper screening wheel group 300 and the lower screening wheel group 400 are located between the left traction component 100 and the right traction component 200. The left traction component includes a fiber input guide wheel 101, a left traction mounting plate 102, a left traction drum wheel 103, a left traction drum wheel 206, a left traction wheel 104, and a left traction belt 105. The right traction component includes a fiber output guide wheel 201, a right traction mounting plate 202, a right traction drum wheel 103, a right traction drum wheel 206, a right traction wheel 204, and a right traction belt 205. The upper screening wheel group 300 includes two groups of guide wheels, namely, guide wheels D and guide wheels F, in the horizontal direction, and an upward moving mounting plate 301; the two groups of guide wheels, namely, guide wheels D and guide wheels F, are installed on the same upward moving mounting plate 301. The lower screening wheel group 400 includes three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C in the horizontal direction, and a downward moving mounting plate 401 ; the three groups of guide wheels, namely, guide wheel A, guide wheel B, and guide wheel C, are mounted on the same upward moving mounting plate 401 .

[0052] The novel high-speed optical fiber screening mechanism has two working modes, namely Figure 1 The horizontal “straight fiber” pattern shown and Figure 2 The up and down "cross filter" mode shown.

[0053] Furthermore, the horizontal "straight fiber guide" mode and the up and down "cross screening" mode can be switched automatically with one button. The transmission mechanism for switching between the above two states can be forward and reverse spiral screw drive, variable pitch screw drive, synchronous belt drive, chain drive. In order to reduce the mode switching time, synchronous belt drive and chain drive are preferred. Combined with durability and rigidity, chain drive is most preferred.

[0054] Furthermore, in order to ensure that the optical fiber is continuous when the horizontal "straight fiber drawing" mode is switched to the upward and downward "cross screening" mode, the linear speed of the left traction component 100 should be higher than that of the right traction component 200 when the mode is switched. The speed difference between the two is approximately 10 times the upward linear speed of the upper screening wheel group 300.

[0055] In the described high-speed optical fiber screening mechanism, when in the horizontal "straight fiber guiding" mode, the upper screening wheel group 300 is located below the lower screening wheel group 400, that is, three groups of guide wheels, guide wheel A, guide wheel B, and guide wheel C, and two groups of guide wheels, guide wheel D and guide wheel F, are arranged alternately, and the horizontal fiber guiding height H is adjustable in the range of 900-1200mm. The optical fiber passes through the guide wheels A, guide wheel D, guide wheel B, guide wheel F, and guide wheel C in sequence, which is easy to operate.

[0056] Furthermore, in order to take into account the convenience of operators of different heights, the horizontal fiber introduction height H is preferably between 1000 and 1100 mm.

[0057] In the upper and lower "cross screening" modes of the novel high-speed optical fiber screening mechanism, the upper screening wheel group 300 moves up 750-900 mm, and the lower screening wheel group 400 moves down the same distance synchronously, which can ensure that the optical fiber screening length is between 9-11 meters and meet the screening time requirements.

[0058] Furthermore, in order to take into account both screening efficiency and screening quality, the upper screening wheel group 300 preferably moves upward by a distance of 800-850 mm, and the lower screening wheel group 400 moves downward by the same distance simultaneously.

[0059] The guide wheels A, B, C, D and F of the novel high-speed optical fiber screening mechanism are all single-piece wheel groups, which solve the problem of optical fibers scratching the edges of guide wheels and causing coating damage in the upper and lower spiral fiber winding state of traditional multi-piece screening wheel groups. Especially in the high-speed screening state, additional damage caused by equipment reasons is avoided, and the yield rate is improved.

[0060] Furthermore, to ensure that the optical fiber and the wheel groove do not scratch each other during the screening process, the fiber entry guide wheel 101, guide wheel A, guide wheel B, guide wheel C, guide wheel D, guide wheel F and fiber output guide wheel 201 are all single-piece wheel groups and the center lines of the wheel grooves are designed to be on the same plane.

[0061] The tension sensor for closed-loop detection control of a high-speed optical fiber screening mechanism can be installed on any one of the guide wheel A, guide wheel B, guide wheel C, guide wheel D, and guide wheel F, and does not require a tension sensor with a large range of multiple wheel sets. The range can be reduced to 1 / 3 of the original tension sensor, thereby improving the tension detection accuracy and reducing the device cost.

[0062] Furthermore, in order to take into account both tension detection accuracy and overload protection, the range of the tension sensor can be selected to be 40-80N, preferably 60N.

[0063] The one-button automatic switching from the horizontal "straight fiber drawing" mode to the up-and-down "cross screening" mode of the novel high-speed optical fiber screening mechanism is achieved by moving the upper screening wheel group 300 upward and the lower screening wheel group 400 downward, and the up-and-down movement is synchronously linked to quickly achieve mode switching and improve screening efficiency. Compared with the traditional screening machine worker's fiber drawing method of repeatedly raising his head and bending his waist, the labor intensity of the workers is greatly reduced and the fiber drawing efficiency is improved.

[0064] Furthermore, the fiber introduction time in the screening area is shortened from the original 6-8 seconds to 2-3 seconds. Compared with the traditional screening machine fiber introduction method where workers have to raise their heads and bend down repeatedly, this greatly reduces the workers' labor intensity and improves the screening efficiency.

[0065] The working principle of this utility model:

[0066] The utility model provides a novel high-speed optical fiber screening mechanism. A high-speed optical fiber screening mechanism comprises a left traction component 100, a right traction component 200, an upper screening wheel group 300, and a lower screening wheel group 400; the upper screening wheel group 300 and the lower screening wheel group 400 are located between the left traction component 100 and the right traction component 200. The left traction component comprises a fiber entry guide wheel 101, a left traction mounting plate 102, a left traction drum wheel 103, a left traction drum wheel 206, a left traction wheel 104, and a left traction belt 105. The right traction component comprises a fiber output guide wheel 201, a right traction mounting plate 202, a right traction drum wheel 103, a right traction drum wheel 206, a right traction wheel 204, and a right traction belt 205. The upper screening wheel group 300 comprises two groups of guide wheels, namely, guide wheels D and guide wheels F, in the horizontal direction, and an upward moving mounting plate 301; the two groups of guide wheels, namely, guide wheels D and guide wheels F, are mounted on the same upward moving mounting plate 301. The lower screening wheel group 400 includes three groups of guide wheels A, B and C in the horizontal direction and a lower moving mounting plate 401; the three groups of guide wheels A, B and C are installed on the same upper moving mounting plate 401. The mechanism has two working modes, namely the horizontal "straight fiber leading" mode and the upper and lower "cross screening" mode.

[0067] The mechanism uses one-button automatic switching from the horizontal "straight fiber guiding" mode to the up-and-down "cross screening" mode, which is achieved by moving the upper screening wheel group 300 upward and the lower screening wheel group 400 downward, and the up and down movements are synchronously linked to quickly achieve mode switching and improve screening efficiency. Compared with the traditional screening machine worker's fiber guiding method of repeatedly raising his head and bending his waist up and down, this greatly reduces the labor intensity of the workers and improves the fiber guiding efficiency.

[0068] The above embodiments are only for describing the basic principle, main features and advantages of the utility model. Its purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and it cannot limit the protection scope of the utility model in turn. Without departing from the principle and scope of the utility model, the possible embodiments of the utility model may have various changes and improvements, and these changes and improvements fall within the protection scope of the utility model.

Claims

1. A high-speed optical fiber screening mechanism, characterized in that: It comprises a left traction component (100), a right traction component (200), an upper screening wheel group (300) and a lower screening wheel group (400); the upper screening wheel group (300) and the lower screening wheel group (400) are located between the left traction component (100) and the right traction component (200); The left traction component (100) comprises a fiber entry guide wheel (101), a left traction mounting plate (102), a left traction drum wheel 1 (103), a left traction drum wheel 2 (106), a left traction wheel (104) and a left traction belt (105); The left traction component (100) is mounted on the left traction mounting plate (102); the left traction wheel (104) is equipped with a transmission motor, the rotation speed of which is controlled by a PLC programmable controller; the left traction belt (105) is mounted on the left traction drum wheel 1 (103) and the left traction drum wheel 2 (106); one side of the left traction belt (105) is closely attached to the left traction wheel (104) to compress the optical fiber, and at the same time, the left traction belt (105) drives the left traction drum wheel 1 (103) and the left traction drum wheel 2 (106) to rotate; The right traction component (200) comprises a fiber outlet guide wheel (201), a right traction mounting plate (202), a right traction drum wheel 1 (203), a right traction drum wheel 2 (206), a right traction wheel (204) and a right traction belt (205); The right traction component (200) is mounted on the right traction mounting plate (202), the right traction wheel (204) is equipped with a transmission motor, the speed of which is controlled by a PLC programmable controller, the right traction belt (205) is mounted on the right traction drum wheel 1 (203) and the right traction drum wheel 2 (206), one side of the right traction belt (205) is closely attached to the right traction wheel (204) to compress the optical fiber, and at the same time, the right traction belt (205) drives the right traction drum wheel 1 (203) and the right traction drum wheel 2 (206) to rotate: The upper screening wheel group (300) comprises two groups of guide wheels, namely, guide wheels D and guide wheels F, in the horizontal direction, and an upwardly movable mounting plate (301); the two groups of guide wheels D and guide wheels F are mounted on the same upwardly movable mounting plate (301); The lower screening wheel group (400) comprises three groups of guide wheels, namely, guide wheel A, guide wheel B and guide wheel C, in the horizontal direction, and a downward moving mounting plate (401); the three groups of guide wheels, namely, guide wheel A, guide wheel B and guide wheel C, are mounted on the same downward moving mounting plate (401); The upper screening wheel group (300) comprises two groups of guide wheels, guide wheels D and guide wheels F, in the horizontal direction, and an upward mounting plate (301); Two sets of guide wheels, guide wheel D and guide wheel F, are mounted on the same upward mounting plate (301); The lower screening wheel group (400) comprises three groups of guide wheels, namely, guide wheel A, guide wheel B and guide wheel C, in the horizontal direction, and a downward moving mounting plate (401); the three groups of guide wheels, namely, guide wheel A, guide wheel B and guide wheel C, are mounted on the same downward moving mounting plate (401).

2. A high-speed optical fiber screening mechanism according to claim 1, characterized in that: The left traction wheel (104) and the right traction wheel (204) are respectively controlled to have different rotation speeds through a PLC programmable controller to generate optical fiber transmission tension.

3. A high-speed optical fiber screening mechanism according to claim 1, characterized in that: The mechanism has two working modes, namely the horizontal "straight fiber leading" mode and the up and down "cross screening" mode; In the horizontal "straight fiber guiding" mode, the upper screening wheel group (300) is located below the lower screening wheel group (400), that is, the three groups of guide wheels A, B, and C and the two groups of guide wheels D and F are arranged alternately, and the horizontal fiber guiding height H is adjustable in the range of 900-1200 mm. The optical fiber passes through the guide wheel A, D, B, F, and C in sequence, which is easy to operate. In the upper and lower "cross screening" modes, the upper screening wheel group (300) moves up by 750-900 mm, and the lower screening wheel group (400) moves down by the same distance synchronously, ensuring that the optical fiber screening length is between 9-11 meters, meeting the screening time requirements.

4. A high-speed optical fiber screening mechanism according to claim 3, characterized in that: One-touch automatic switching from a horizontal "straight fiber guiding" mode to an up-and-down "cross screening" mode is achieved by moving the upper screening wheel group (300) upward and the lower screening wheel group (400) downward, and the upward and downward movements are synchronously linked to quickly achieve mode switching and improve screening efficiency.

5. A high-speed optical fiber screening mechanism according to claim 1, characterized in that: Guide wheel A, guide wheel B, guide wheel C, guide wheel D and guide wheel F are all single-piece wheel sets.

6. A high-speed optical fiber screening mechanism according to claim 1, characterized in that: The tension sensor involved in the closed-loop detection control can be installed on any one of the guide wheel A, guide wheel B, guide wheel C, guide wheel D, and guide wheel F. There is no need for a tension sensor with a large range of multiple wheel sets. The range can be reduced to 1 / 3 of the original tension sensor, which improves the tension detection accuracy and reduces the device cost.

Images