Metering and cutting device for optical fiber

Abstract

The utility model discloses an optical fiber metering and cutting device, which relates to the technical field of optical fiber processing equipment and comprises a base and an encoder, and a first guide part, a length metering mechanism and a shearing mechanism are sequentially arranged on the base. The first guide part is provided with a first guide position, the length metering mechanism comprises a metering roller and an extrusion part which are sequentially arranged in the vertical direction, an extrusion position for extruding an optical fiber is formed between the extrusion part and the peripheral side of the metering roller, and the optical fiber passing through the extrusion position can drive the metering roller to rotate when moving; the shearing mechanism is used for cutting off the optical fiber at the shearing position; the encoder is installed on the base, and the metering roller is connected to an output shaft of the encoder. According to the utility model, the optical fiber drives the metering roller to rotate when passing through the extrusion position, and the encoder is utilized to measure the rotating perimeter of the metering roller, so that the length of the optical fiber is metered, the metering precision is high, and errors are not easy to occur; and the shearing mechanism is used for cutting off, so that the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber processing equipment, and particularly relates to a metering and cutting device for optical fibers. Background Art

[0002] Optical fibers are widely used in the fields of medical treatment, optical fiber sensing, fiber lasers, optical fiber communication, etc. Since the incoming material packages of optical fibers are all in a coiled shape, that is, the optical fibers are wound around an I-shaped spool, when such packaged optical fibers are put into use, it is necessary to measure and cut the optical fibers according to the required length. Currently, the problem is that when measuring the length of the optical fiber, manual measurement tools such as a ruler are needed, but the method of manually measuring the length of the optical fiber with a ruler is prone to deviation. Moreover, when cutting the optical fiber, it is cut by a manual cutting tool such as scissors, which is also prone to deviation and has low working efficiency. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a metering and cutting device for optical fibers, aiming to solve the technical problems that manual measurement and cutting of optical fibers are prone to deviation and have low working efficiency.

[0004] To achieve the above object, the utility model provides a metering and cutting device for optical fibers, and the metering and cutting device includes:

[0005] A base, the base extends in the horizontal direction, and a first guiding member, a length metering mechanism, and a shearing mechanism are sequentially arranged on the base along the horizontal direction; the first guiding member has a first guiding position, the length metering mechanism includes a metering roller and an extrusion member sequentially arranged in the vertical direction, an extrusion position for extruding the optical fiber is formed between the extrusion member and the outer peripheral side of the metering roller, and when the optical fiber passing through the extrusion position moves, it can drive the metering roller to rotate; a shearing position is provided on the base, and the shearing mechanism is used to cut the optical fiber at the shearing position; wherein, the optical fiber can sequentially pass through the first guiding position, the extrusion position, and the shearing position along the first horizontal direction;

[0006] An encoder, the encoder is installed on the base, and the metering roller is connected to the output shaft of the encoder, and the encoder is used to measure the rotation angle of the metering roller.

[0007] In an embodiment, the first guiding member includes a connecting portion and a guiding portion connected to each other, and the guiding portion is located at the top of the connecting portion, and the connecting portion is detachably connected to the base through a connecting member; a guiding channel extending in the first horizontal direction is formed on the guiding portion, and the guiding channel forms the first guiding position.

[0008] In one embodiment, a mounting bracket is further provided on the base, the encoder is provided on the top of the mounting bracket, the output shaft of the encoder extends along a second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction; the metering roller is located on the top of the extrusion member, and an extrusion position for extruding the optical fiber is formed between the extrusion member and the bottom outer peripheral side of the metering roller.

[0009] In one embodiment, a connecting rod extending along the second horizontal direction is further provided on the mounting bracket, and the connecting rod is located below the encoder; the extrusion piece is provided on the connecting rod at a position corresponding to the metering roller.

[0010] In one embodiment, the extrusion member is an extrusion roller, which is rotatably mounted on the connecting rod. The extrusion position is formed between the top peripheral side of the extrusion roller and the bottom peripheral side of the metering roller. When the optical fiber passes through the extrusion position, it can drive the metering roller and the extrusion roller to rotate synchronously and in the opposite direction.

[0011] In one embodiment, a positioning block is also provided on the base, and the positioning block includes a mounting portion and a positioning portion, the positioning portion is located on the top of the mounting portion, the mounting portion is connected to the base, and the positioning portion is provided with a positioning channel extending along the first horizontal direction and a positioning through hole extending along the second horizontal direction, and the positioning channel is connected to the positioning through hole, the first horizontal direction is perpendicular to the second horizontal direction, and the optical fiber can pass through the positioning channel and the positioning through hole along the first horizontal direction; the positioning through hole forms the shearing position.

[0012] In one embodiment, the shearing mechanism is a pneumatic scissors, the blades of which extend into the positioning through hole and are used to cut the optical fiber.

[0013] In one embodiment, a fixing bracket is further provided on the base, and the fixing bracket is located on a side of the encoder close to the first guide member; a fixing member extending along the first horizontal direction is provided on the fixing bracket, and the fixing member is connected to the encoder.

[0014] In one embodiment, a second guide member is further provided on the base, and the second guide member is close to the side of the shearing mechanism away from the length measuring mechanism. The second guide member is provided with a guide hole extending along the first horizontal direction, and the guide hole forms the second guide position. The first guide position and the second guide position are arranged in the same plane; the optical fiber can pass through the first guide position, the extrusion position, the shearing position and the second guide position in sequence along the first horizontal direction.

[0015] In one embodiment, the first guiding position, the pressing position, and the shearing position are arranged on the same plane.

[0016] The metering and cutting device of the present utility model is provided with a length metering mechanism on the base for metering the displacement length of the optical fiber, and a shearing mechanism is provided for cutting the optical fiber, which can simultaneously achieve the length metering and cutting of the optical fiber. Specifically, the length metering mechanism includes a vertically arranged metering roller and a pressing member. The optical fiber passes through the pressing position between the pressing member and the metering roller, and since the pressing member firmly presses the optical fiber on the outer peripheral side of the metering roller, the friction between the optical fiber and the metering roller is greater. Therefore, when the optical fiber moves, it will drive the metering roller to rotate simultaneously, and the displacement distance of the optical fiber and the circumference of the rotation of the metering roller. At the same time, an encoder is used to measure the rotation angle of the metering roller, so that the rotation circumference of the metering roller can be obtained by combining the radius of the metering roller, thereby reflecting the displacement amount of the optical fiber and realizing the length metering of the optical fiber. Compared with the method of manually measuring with tools such as a ruler, the metering accuracy is higher and errors are not easily occurred; and a shearing mechanism is provided on the base. When the optical fiber moves along the first horizontal direction, it first passes through the measuring position and then reaches the shearing position. Therefore, after measuring that the optical fiber has displaced a specified distance, which is also the length from the head of the optical fiber to the shearing position, the optical fiber with the required length can be obtained by shearing through the shearing mechanism. Compared with the method of manually cutting the optical fiber with tools such as scissors, errors are not easily occurred during shearing, and the length of the obtained optical fiber is more in line with the required length. Moreover, using this metering and cutting device for the length metering and cutting of the optical fiber saves time cost and has higher working efficiency. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the metering and cutting device provided by the present utility model;

[0019] Figure 2 It is a front view of an embodiment of the metering and cutting device provided by the present utility model;

[0020] Figure 3 It is a top view of an embodiment of the metering and cutting device provided by the present utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 100. Metering truncation device; 1. Base; 11. First guide; 111. Connection part; 112. Guide part; 1121. Guide channel; 1122. First guiding position; 12. Mounting bracket; 13. Connecting rod; 14. Fixed bracket; 15. Fixing piece; 16. Positioning block; 161. Mounting part; 162. Positioning part; 1621. Positioning channel; 1622. Positioning through hole; 1623. Shearing position; 17. Second guide; 171. Guide hole; 2. Length metering mechanism; 21. Metering roller; 22. Extrusion piece; 22a. Extrusion roller; 23. Extrusion position; 3. Shearing mechanism; 4. Encoder; 41. Output shaft;

[0023] 200. Optical fiber.

[0024] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] The present utility model provides a metering and cutting device 100 for optical fibers.

[0029] Please refer to Figures 1 - 3 , in an embodiment of the present utility model, the metering and cutting device 100 includes a base 1 and an encoder 4. The base 1 extends along a first horizontal direction. A first guiding member 11, a length metering mechanism 2, and a shearing mechanism 3 are sequentially arranged on the base 1 in the horizontal direction. The first guiding member 11 has a first guiding position 1122. The length metering mechanism 2 includes a metering roller 21 and a pressing member 22 arranged sequentially in the vertical direction. An extrusion position 23 for extruding the optical fiber 200 is formed between the pressing member 22 and the outer peripheral side of the metering roller 21. When the optical fiber 200 passing through the extrusion position 23 moves, it can drive the metering roller 21 to rotate. There is a shearing position 1623 on the base 1, and the shearing mechanism 3 is used to cut off the optical fiber 200 at the shearing position 1623. Among them, the optical fiber 200 can sequentially pass through the first guiding position 1122, the extrusion position 23, and the shearing position 1623 along the first horizontal direction. The encoder 4 is installed on the base 1, and the metering roller 21 is connected to the output shaft 41 of the encoder 4. The encoder 4 is used to measure the rotation angle of the metering roller 21.

[0030] The metering and cutting device 100 of the present utility model is provided with a length metering mechanism 2 on the base 1 for measuring the displacement length of the optical fiber 200, and a shearing mechanism 3 is provided for cutting the optical fiber 200, so as to simultaneously realize the length metering and cutting of the optical fiber 200. Specifically, the length metering mechanism 2 includes a vertically arranged metering roller 21 and a pressing member 22. The optical fiber 200 passes through the extrusion position between the pressing member 22 and the metering roller 21. Since the pressing member 22 firmly presses the optical fiber 200 on the outer peripheral side of the metering roller 21, the friction between the optical fiber 200 and the metering roller 21 is greater. Therefore, when the optical fiber 200 moves, it will drive the metering roller 21 to rotate at the same time. And the displacement distance of the optical fiber 200 and the circumference of the rotation of the metering roller 21. At the same time, the encoder 4 is used to measure the rotation angle of the metering roller 21, so as to obtain the rotation circumference of the metering roller 21 by combining the radius of the metering roller 21, thereby reflecting the displacement amount of the optical fiber 200 and realizing the length metering of the optical fiber 200. Compared with the way of manually measuring with tools such as a ruler, the metering accuracy is higher and it is not easy to have errors. And a shearing mechanism 3 is arranged on the base 1. When the optical fiber 200 moves along the first horizontal direction, it first passes through the measuring position and then reaches the shearing position 1623. Therefore, after measuring that the optical fiber 200 has displaced a specified distance, which is also the length from the head of the optical fiber 200 to the shearing position 1623, and then cutting through the shearing mechanism 3, the optical fiber 200 with the required length can be obtained. Compared with the way of manually cutting the optical fiber 200 with tools such as scissors, it is not easy to have errors during shearing, and the length of the obtained optical fiber 200 is more in line with the required length. And using this metering and cutting device 100 for length metering and cutting of the optical fiber 200 saves time costs and has a higher working efficiency.

[0031] It should be noted that, in this embodiment, the first horizontal direction mentioned herein is Figure 1 the left - right direction in Figure 1 and the second horizontal direction is Figure 1 the front - back direction in

[0032] It can be understood that the first guiding position 1122 is used to guide the optical fiber 200 to move along the first horizontal direction and pass through the extrusion position 23, so as to make the measurement result more accurate.

[0033] Specifically, the first guiding position 1122, the extrusion position 23 and the shearing position 1623 are located on the same straight line along the first direction, so that the optical fiber 200 extends in a straight line and is easier to pull.

[0034] It should be noted that the encoder 4 can adopt the encoder 4 in the existing technology, which will not be elaborated here. When the metering roller 21 rotates, the encoder 4 can timely measure the rotation angle of the metering roller 21.

[0035] In some embodiments, the optical fiber 200 can be displaced by manually pulling at the left end of the base 1, or other devices can be used to realize the pulling of the optical fiber 200, or an additional conveying device is provided at the right end of the base 1.

[0036] In other embodiments, the optical fiber 200 can also be driven to move by rotating the metering roller 21, which can also play a role in measuring the displacement of the optical fiber 200.

[0037] In one embodiment, the first guiding member 11 includes a connecting portion 111 and a guiding portion 112 which are connected to each other, and the guiding portion 112 is located at the top of the connecting portion 111. The connecting portion 111 is detachably connected to the base 1 through a connecting member; a guiding channel 1121 extending along the first horizontal direction is formed on the guiding portion 112, and the guiding channel 1121 forms the first guiding position 1122.

[0038] It can be understood that the first guiding member 11 is composed of the connecting portion 111 and the guiding portion 112, and has a simple structure. Among them, the connecting portion 111 is detachably connected to the base 1 through a connecting member, which is convenient for the installation and disassembly of the first guiding member 11; a guiding channel 1121 is formed on the guiding portion 112, and the guiding channel 1121 has a certain length, which can better guide the optical fiber 200 and adjust the angle of the optical fiber 200, so that the optical fiber 200 always passes through the extrusion position 23 along the first horizontal direction, facilitating passing through the extrusion position 23 for length measurement, and making the measurement result more accurate.

[0039] Further, the connecting member is a bolt. Through holes extending vertically are provided at both ends of the connecting member along the first horizontal direction, and threaded holes are provided on the base 1. The screw rod of the bolt passes through the through hole from top to bottom and is threadedly connected to the threaded hole. The nut of the bolt is located at the top of the through hole, thereby detachably mounting the first guiding member 11 on the base 1. Among them, the threaded hole on the base 1 can be a strip-shaped threaded hole, which is convenient for adjusting the position of the first guiding member 11 on the base 1.

[0040] Among them, the first guiding member 11 has a convex shape, and the connecting portion 111 and the guiding portion 112 of the first guiding member 11 are integrally formed, and the structure is more stable.

[0041] In an embodiment, an installation bracket 12 is further provided on the base 1. The encoder 4 is disposed on the top of the installation bracket 12. The output shaft 41 of the encoder 4 extends along the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction. The metering roller 21 is located on the top of the pressing member 22, and a pressing position 23 for pressing the optical fiber 200 is formed between the pressing member 22 and the outer peripheral side of the bottom of the metering roller 21.

[0042] It can be understood that through the installation bracket 12, the encoder 4 can be supported at a certain height, so that the metering roller 21 is suspended, avoiding inaccurate metering results caused by other influences. Moreover, the metering roller 21 is located on the top of the pressing member 22. Under the action of the gravity of the metering roller 21, it can cooperate with the pressing member 22 to better clamp the optical fiber 200, and the friction force is greater.

[0043] In another embodiment, the pressing member 22 can also be disposed on the top of the metering roller 21.

[0044] Further, the installation bracket 12 is detachably mounted on the base 1 through bolts, which is convenient for installation and disassembly.

[0045] In an embodiment, a connecting rod 13 extending along the second horizontal direction is further provided on the installation bracket 12, and the connecting rod 13 is located below the encoder 4. A pressing member 22 is provided at a position corresponding to the metering roller 21 on the connecting rod 13.

[0046] It can be understood that by providing the connecting rod 13 on the base 1 and the pressing member 22 being located on the connecting rod 13, there is no need to install other structures on the base 1 for connecting the pressing member 22, so that the pressing member 22 can be installed on the base 1 together with the installation bracket 12. The structure is simple and easy to disassemble.

[0047] Moreover, the connecting rod 13 can also keep the positions of the pressing member 22 and the metering roller 21 relatively fixed.

[0048] In one embodiment, the pressing member 22 can be a pressing rod or a pressing plate. Since the optical fiber 200 passes between the pressing member 22 and the metering roller 21, the metering roller 21 and the pressing member 22 may not be in contact. Even if the pressing rod does not rotate, it does not affect the rotation of the metering roller 21. Moreover, the top surface area of the pressing rod or the pressing plate is small and will not affect the metering roller 21. In order not to damage the optical fiber 200, the top of the pressing member 22 can be made of a flexible material.

[0049] In another embodiment, the pressing member 22 is a pressing roller 22a. The pressing roller 22a is rotatably sleeved on the connecting rod 13. An extrusion position 23 is formed between the outer peripheral side of the top of the pressing roller 22a and the outer peripheral side of the bottom of the metering roller 21. When the optical fiber 200 passing through the extrusion position 23 moves, it can drive the metering roller 21 and the pressing roller 22a to rotate synchronously and in opposite directions.

[0050] It can be understood that by setting the pressing member 22 as the pressing roller 22a, when the optical fiber 200 moves, it drives the metering roller 21 and the pressing roller 22a to rotate synchronously, and the rotation directions of the two are opposite, making the optical fiber 200 easier to be pulled and not easily damaging the outer surface of the optical fiber 200, with strong reliability.

[0051] In one embodiment, a fixing bracket 14 is further provided on the base 1, and the fixing bracket 14 is located on the side of the encoder 4 close to the first guiding member 11; a fixing member 15 extending in the first horizontal direction is provided on the fixing bracket 14, and the fixing member 15 is connected to the encoder 4.

[0052] It can be understood that when pulling the optical fiber 200, the direction of the frictional force between the optical fiber 200 and the metering roller 21 is downward and to the left. By providing the fixing bracket 14 on the side of the encoder 4 close to the first guiding member 11, that is, on the right side of the encoder 4, and connecting the fixing bracket 14 to the encoder 4, the leftward force between the optical fiber 200 and the metering roller 21 can be balanced, preventing the direction angle of the metering roller 21 provided on the output shaft 41 of the encoder 4 from changing after long-term use, with a longer service life, a more stable structure, and being conducive to long-term use.

[0053] In one embodiment, a positioning block 16 is further provided on the base 1. The positioning block 16 includes a mounting portion 161 and a positioning portion 162. The positioning portion 162 is located at the top of the mounting portion 161. The mounting portion 161 is connected to the base 1. A positioning channel 1621 extending in the first horizontal direction and a positioning through hole 1622 extending in the second horizontal direction are formed on the positioning portion 162, and the positioning channel 1621 is communicated with the positioning through hole 1622. The first horizontal direction is perpendicular to the second horizontal direction. The optical fiber 200 can pass through the positioning channel 1621 and the positioning through hole 1622 along the first horizontal direction; the positioning through hole 1622 forms a shearing position 1623.

[0054] It can be understood that the positioning block 16 is detachably connected to the base for easy disassembly and installation, and the positioning portion 162 is provided with a positioning channel 1621, which can be used to guide the optical fiber 200, and also has the function of positioning and straightening the optical fiber 200. The optical fiber 200 passing through the positioning channel 1621 will also pass through the positioning through hole 1622, and the shearing mechanism 3 will cut the optical fiber 200 at the positioning through hole 1622, which is convenient and quick. In addition, the position of the shearing mechanism 3 does not move, errors are not easy to occur, and the accuracy is high.

[0055] Specifically, the mounting portion 161 may be fixed on the base by bolts.

[0056] Furthermore, the shearing mechanism 3 is a pneumatic scissors, the blades of which extend into the positioning through hole 1622 and are used to cut the optical fiber 200 .

[0057] It can be understood that by using pneumatic scissors, the optical fiber 200 can be cut without manual effort, thereby maintaining the position accuracy of the cutting mechanism 3, preventing errors from occurring easily, and achieving higher accuracy.

[0058] The pneumatic scissors can be pneumatic scissors in the prior art, and their specific structure is not described in detail here. The pneumatic scissors are arranged on the base 1 along the second horizontal direction, and are perpendicular to the optical fiber 200, so that the cross section of the cut optical fiber 200 is flatter.

[0059] In one embodiment, a second guide member 17 is further provided on the base 1, and the second guide member 17 is close to the side of the shearing mechanism 3 away from the length measuring mechanism 2. The second guide member 17 is provided with a guide hole 171 extending along the first horizontal direction, and the guide hole 171 forms a second guide position. The first guide position 1122 and the second guide position are arranged in the same plane; the optical fiber 200 can pass through the first guide position 1122, the extrusion position 23, the shearing position 1623 and the second guide position in sequence along the first horizontal direction.

[0060] It can be understood that by providing the second guide member 17, it can be used to position the optical fiber 200 in cooperation with the first guide member 11, guide the displacement of the optical fiber 200, and avoid the position angle change of the optical fiber 200 during the movement.

[0061] Specifically, the first guide member 11 and the second guide member 17 are respectively disposed at two ends of the base 1 along the first horizontal direction, so that the optical fiber 200 can move along the first horizontal direction.

[0062] It should be noted that the specific structure of the second guide member 17 is the same as that of the first guide member 11, which will not be described in detail here.

[0063] In one embodiment, the first guiding position 1122, the extrusion position 23 and the shearing position 1623 are disposed on the same plane.

[0064] Understandably, the first guiding bit 1122, the extrusion bit 23, and the shearing bit 1623 are arranged in the same plane, enabling the optical fiber 200 to move in a straight line and straightening the optical fiber 200, with higher measurement accuracy and being easier to be pulled, which can reduce the labor intensity of workers.

[0065] The above description is only an exemplary embodiment of the present utility model, and does not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included within the patent protection scope of the present utility model.

Claims

1. A metering and cutting device for an optical fiber, characterized in that The metering and cutting device includes: A base, which extends along a first horizontal direction. Along the first horizontal direction on the base, a first guiding member, a length metering mechanism, and a shearing mechanism are sequentially arranged. The first guiding member has a first guiding position. The length metering mechanism includes a metering roller and an extrusion member arranged sequentially in the vertical direction. An extrusion position for extruding the optical fiber is formed between the extrusion member and the outer peripheral side of the metering roller. When the optical fiber passing through the extrusion position moves, it can drive the metering roller to rotate. There is a shearing position on the base, and the shearing mechanism is used to cut off the optical fiber at the shearing position. Wherein, the optical fiber can sequentially pass through the first guiding position, the extrusion position, and the shearing position along the first horizontal direction. An encoder, which is installed on the base, and the metering roller is connected to the output shaft of the encoder. The encoder is used to measure the rotation angle of the metering roller.

2. The metering and cutting device for an optical fiber according to claim 1, wherein The first guiding member includes a connecting portion and a guiding portion connected to each other, and the guiding portion is located at the top of the connecting portion. The connecting portion is detachably connected to the base through a connecting member. A guiding channel extending along the first horizontal direction is formed on the guiding portion, and the guiding channel forms the first guiding position.

3. The metering and cutting device for an optical fiber according to claim 1, wherein An installation bracket is further arranged on the base. The encoder is arranged on the top of the installation bracket. The output shaft of the encoder extends along a second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction. The metering roller is located at the top of the extrusion member, and an extrusion position for extruding the optical fiber is formed between the extrusion member and the bottom outer peripheral side of the metering roller.

4. The metering and cutting device for an optical fiber according to claim 3, characterized in that, A connecting rod extending along the second horizontal direction is further arranged on the installation bracket, and the connecting rod is located below the encoder. The extrusion member is arranged at a position corresponding to the metering roller on the connecting rod.

5. The metering and cutting device for an optical fiber according to claim 4, characterized in that, The extrusion member is an extrusion roller, and the extrusion roller is rotatably sleeved on the connecting rod. An extrusion position is formed between the top outer peripheral side of the extrusion roller and the bottom outer peripheral side of the metering roller. When the optical fiber passing through the extrusion position moves, it can drive the metering roller and the extrusion roller to rotate synchronously and in opposite directions.

6. The metering and truncating device for an optical fiber according to claim 3, wherein, A positioning block is further arranged on the base. The positioning block includes an installation portion and a positioning portion. The positioning portion is located at the top of the installation portion. The installation portion is connected to the base. A positioning channel extending along the first horizontal direction and a positioning through-hole extending along the second horizontal direction are formed on the positioning portion, and the positioning channel is communicated with the positioning through-hole. The optical fiber can pass through the positioning channel and the positioning through-hole along the first horizontal direction. The positioning through-hole forms the shearing position.

7. The metering and truncating device for an optical fiber according to claim 6, wherein, The shearing mechanism is a pneumatic scissors, and the blade of the pneumatic scissors extends into the positioning through-hole and is used to cut off the optical fiber.

8. The metering and cutting device for an optical fiber according to any one of claims 1 to 7, characterized in that, A fixing bracket is also arranged on the base, and the fixing bracket is located on a side of the encoder close to the first guide member; a fixing member extending along the first horizontal direction is arranged on the fixing bracket, and the fixing member is connected to the encoder.

9. The metering and cutting device for an optical fiber according to any one of claims 1 to 7, characterized in that, A second guide member is also provided on the base, the second guide member is close to a side of the shearing mechanism away from the length measuring mechanism, a guide hole extending along the first horizontal direction is provided on the second guide member, the guide hole forms a second guide position, and the first guide position and the second guide position are provided in the same plane; The optical fiber can sequentially pass through the first guide position, the extrusion position, the shearing position and the second guide position along the first horizontal direction.

10. The optical fiber measuring and cutting device according to any one of claims 1 to 7, characterized in that: The first guiding position, the extrusion position and the shearing position are arranged on the same plane.

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