Through hole tool for optical fiber drawing coating die

Abstract

The utility model discloses an optical fiber drawing coating die through hole tool, which comprises a die through hole guider through hole needle and a die, the top of the small end of the die through hole guider is provided with a through hole needle precise through hole, and the through hole needle is in precise sliding fit with the through hole needle precise through hole of the die through hole guider. The die is installed through an inner hole at the large end of the die through hole guider, is in precise sliding fit with the inner hole and is provided with a positioning structure, so that accurate and stable installation is ensured, a through hole needle is inserted through a through hole needle precise through hole at the top of the small end of the die through hole guider, is in precise sliding fit with the guider and is assisted by a needle hole guide sleeve, and die orifice optical fibers can be automatically and accurately aligned; the alignment accuracy and the knocking fixity are improved, the production efficiency is improved, meanwhile, the accurate positioning structure prevents the die orifice from being damaged due to alignment deviation and knocking deviation, the elastic buffer structure prevents the through hole from damaging the die, the die damage risk is greatly reduced, the die loss is reduced, the production cost is saved, and considerable economic benefits are created for optical fiber production enterprises.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber manufacturing equipment technical field, especially relates to optical fiber drawing coating die through hole tool. BACKGROUND

[0002] With the large-scale vigorous development of Chinese optical fiber industry, each operation in optical fiber production faces the demand of continuous improvement and optimization. In the coating link of optical fiber production starting, the coating die plays a key role. However, in the actual production process, due to many changeable factors existing in optical fiber adjustment and control, the optical fiber diameter fluctuation occurs from time to time, which easily causes the die hole blocking phenomenon.

[0003] At present, when the die hole blocking problem occurs, the technical staff of optical fiber manufacturers generally adopts the method of directly aiming at the die port with a needle tip and knocking, trying to knock out the optical fiber blocked in the die core, but this operation mode requires high eyesight and operation proficiency of the operator, and slight carelessness will cause the damage of the optical fiber drawing coating die core with high precision and high cost; in addition, the simple use of the through hole needle and the alignment of the die port position only by naked eye not only has great alignment difficulty, but also is easy to deviate in the knocking process, further increasing the risk of die port damage, which seriously restricts the improvement of production efficiency and causes the high production cost.

[0004] Therefore, the optical fiber drawing coating die through hole tool is provided. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide the optical fiber drawing coating die through hole tool, in order to prevent the damage of the high-precision and high-cost optical fiber drawing coating die core when the die hole blocking problem is handled, and avoid the further damage of the die port due to the improper operation, thereby improving the production efficiency and reducing the production cost, which can effectively solve the problems in the background art.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The optical fiber drawing coating die through hole tool comprises a die through hole guider through hole needle and a die, a through hole needle precision via hole is formed in the small end top of the die through hole guider, the through hole needle and the through hole needle precision via hole of the die through hole guider are precisely slidably matched, the die is located in the large end inner hole of the die through hole guider, and the die and the inner hole of the die through hole guider are precisely slidably matched, the observation hole in strip shape is formed at the joint of the small end and the large end of the die through hole guider, and the die taking opening is formed in the bottom of the large end of the die through hole guider.

[0008] The positioning structure is arranged between the mold through-hole guide and the mold, and the small-end top end of the mold through-hole guide is provided with a pinhole guide sleeve, and the through-hole needle is provided with an elastic buffer structure.

[0009] By adopting the above technical scheme, the mold is installed through the large-end inner hole of the mold through-hole guide, and since the mold and the inner hole of the mold through-hole guide are precisely slidably matched, the accuracy and stability of the mold during installation are ensured, and the positioning structure between them further fixes the position of the mold, so that the mold will not easily displace during the subsequent working process, and the accuracy requirement of the entire tool is ensured.

[0010] The through-hole needle is inserted through the through-hole needle precision via hole opened at the small-end top end of the mold through-hole guide, and since the through-hole needle and the through-hole needle precision via hole are precisely slidably matched, the through-hole needle can be accurately inserted into the corresponding position, the pinhole guide sleeve plays a guiding role at the top end of the through-hole needle, helps the through-hole needle more smoothly enter the through-hole needle precision via hole, and ensures the installation accuracy thereof.

[0011] During the working process, the operator can observe the working state of the mold and the through-hole needle through the observation hole, such as whether they are in the correct position, whether they have deviated, and the like, and if problems are found, the problems can be adjusted in time.

[0012] When the through-hole needle is subjected to certain external force or appears slight vibration during the working process, the elastic buffer structure can absorb the energy, prevents the through-hole needle from causing damage to the mold or other components, and also ensures that the accuracy of the through-hole needle itself is not affected.

[0013] When the work is completed or the mold needs to be replaced, the mold can be taken out through the mold taking-out opening opened at the large-end bottom end of the mold through-hole guide, and this design facilitates the disassembly and replacement of the mold and improves the use efficiency of the tool.

[0014] Further, the positioning structure comprises a positioning protrusion arranged at the inner side of the large end of the mold through-hole guide, and the mold is provided with a positioning groove matched with the positioning protrusion.

[0015] By adopting the technical scheme, when the mold is installed, the mold is placed into the mold through-hole guide large end mold taking-out opening, the positioning protrusions arranged on the inner side of the mold through-hole guide large end will correspond to the positioning grooves previously arranged on the mold, as the mold is deeply inserted into the inner hole of the mold through-hole guide, the positioning protrusions are gradually embedded into the positioning grooves, because the positioning protrusions and the positioning grooves are precisely matched in shape, the position of the mold is accurately calibrated in the embedding process, once the positioning protrusions are completely embedded, the two are tightly matched, the transverse and circumferential movement of the mold in the inner hole of the mold through-hole guide is limited, in the subsequent through-hole needle guiding stage and through-hole operation stage, even if affected by external force, such as the reaction force generated when the through-hole needle is pushed, the mold can maintain the accurate initial position by virtue of the tight matching of the positioning protrusions and the positioning grooves, and will not be deviated, so that it is ensured that the through-hole needle can always accurately align the center small hole of the mold, and the smooth operation and operation accuracy of the whole through-hole operation are ensured.

[0016] Further, the through-hole needle is composed of a front-end operation needle body and a rear-end connecting needle body, and the elastic buffer structure includes a needle body buffer connecting piece between the front-end operation needle body and the rear-end connecting needle body.

[0017] By adopting the technical scheme, the handheld through-hole needle is guided by the needle hole guide sleeve close to the needle hole of the small end top end of the mold through-hole guide, the large-diameter end of the needle hole guide sleeve guides the front-end operation needle body to be initially positioned, and the small-diameter end fine-tunes the position as it is deeply inserted, so that the front-end operation needle body smoothly enters the through-hole needle precision via hole of the mold through-hole guide, and the initial positioning is ensured to be accurate, and the rear-end connecting needle body moves along with the front-end operation needle body, at this time, the needle body buffer connecting piece is in a natural state, and is prepared for possible subsequent buffering.

[0018] Further, the needle body buffer connecting piece includes a buffer pad arranged at the bottom end of the rear-end connecting needle body, and a spring is connected between the bottom end of the buffer pad and the top end of the front-end operation needle body.

[0019] By adopting the technical scheme, the rear-end connecting needle body moves forward, and then drives the front-end operation needle body to advance in the through-hole needle precision via hole of the mold through-hole guide, the operator observes the alignment of the front-end operation needle body and the mold center small hole in real time through the observation hole, continues to advance after aligning the mold hole, if the front-end operation needle body encounters a large resistance, the needle body buffer connecting piece begins to play a role, the spring in the needle body buffer connecting piece is compressed and deformed, absorbs impact energy, avoids damage of the front-end operation needle body due to excessive impact force, and at the same time, the buffer pad disperses the reaction force of the spring, protects the mold hole wall, and the rear-end connecting needle body continuously provides advancing force under the action of the driving device, overcomes part of the resistance, and ensures that the through-hole operation continues.

[0020] Further, an insertion hole for cooperating with the through-hole needle is arranged in the needle hole guide sleeve, and the insertion hole is in the shape of a horn mouth with a large upper end and a small lower end.

[0021] By adopting the technical scheme, when the through-hole needle enters the guiding stage, the operator holds the through-hole needle close to the needle hole guiding sleeve of the small end top end of the mold through-hole guide, and the large-diameter end is used as the initial guiding position, because the opening is large, the difficulty of the operator in initially aligning the through-hole needle with the through-hole needle precision via hole of the mold through-hole guide is reduced, even if the operator has a certain deviation in initial positioning, the through-hole needle head can be easily guided into the insertion hole, as the through-hole needle gradually penetrates into the insertion hole, the small-diameter end starts to play a role, the size of the small-diameter end gradually narrows, and the small-diameter end is more closely matched with the through-hole needle, so that the position of the through-hole needle can be accurately fine-tuned, in this process, the inner wall of the insertion hole continuously corrects the posture of the through-hole needle, so that the axis of the through-hole needle gradually coincides with the axis of the through-hole needle precision via hole of the mold through-hole guide, thereby ensuring that the through-hole needle can accurately and smoothly enter the through-hole needle precision via hole of the mold through-hole guide, accurately positioning the subsequent through-hole operation, greatly improving the accuracy of the initial positioning of the through-hole needle, reducing the operation difficulty caused by positioning errors, and improving the efficiency and success rate of the entire through-hole operation.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] (1) The utility model discloses a fiber drawing coating mold through-hole tool, the mold is installed through the big end inner hole of the mold through-hole guide, the mold and the inner hole of the mold through-hole guide adopt precision sliding fit, and are equipped with positioning structure, which ensures the accuracy and stability of the mold installation, and displacement does not easily occur in the working process;The through-hole needle is inserted through the through-hole needle precision via hole at the top of the small end of the mold through-hole guide, and the two are also precision sliding fit, and the top is equipped with a needle hole guiding sleeve to assist insertion, which can automatically and accurately align the mold port optical fiber, compared with the traditional method of aligning the mold port position by naked eye, the accuracy of alignment is greatly improved, the fixation during knocking is ensured, and the operator can efficiently complete the operation without relying on high eyesight and proficiency, and the production efficiency is greatly improved.

[0024] (2) The utility model discloses a fiber drawing coating mold through-hole tool, in actual production, the traditional operation mode is easy to cause mold port damage due to alignment deviation and knocking deviation, and the tool can effectively avoid such situation through the above-mentioned accurate positioning structure;Meanwhile, when the through-hole needle is subjected to external force or slight vibration in work, the elastic buffer structure arranged can absorb energy, prevents the through-hole needle from damaging the mold, thereby greatly reducing the risk of mold damage, in view of high precision and high cost of the fiber drawing coating mold core, the tool plays a significant role in reducing mold loss, and further greatly saves production cost, and creates considerable economic benefits for fiber production enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1This is a schematic diagram of the through-hole tool for optical fiber drawing and coating mold of this utility model.

[0026] Figure 2 This is a schematic diagram of the through-hole guide and through-hole needle structure of the optical fiber drawing and coating mold through-hole tool of this utility model.

[0027] Figure 3 This is a three-dimensional structural diagram of the top of the through-hole guide of the optical fiber drawing and coating mold through-hole tool of this utility model.

[0028] Figure 4 This is a three-dimensional structural diagram of the bottom of the through-hole guide of the optical fiber drawing and coating mold through-hole tool of this utility model.

[0029] Figure 5 This is a top view of the through-hole guide of the optical fiber drawing and coating mold through-hole tool of this utility model.

[0030] In the diagram: 1. Mold through-hole guide; 2. Through-hole pin; 3. Mold; 4. Positioning protrusion; 5. Positioning groove; 6. Precision through-hole pin; 7. Observation hole; 8. Pin hole guide sleeve; 9. Insertion hole; 10. Front working pin body; 11. Rear connecting pin body; 12. Buffer pad; 13. Spring; 14. Mold removal opening. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] To prevent damage to the high-precision, high-cost fiber drawing and coating die core during die clogging issues, and to avoid further damage to the die opening due to improper operation causing die opening position misalignment, thereby improving production efficiency and reducing production costs, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the optical fiber drawing and coating mold through-hole tool includes a mold through-hole guide 1, a through-hole pin 2, and a mold 3. The mold through-hole guide 1 has a through-hole pin precision through-hole 6 at its small end. The through-hole pin 2 and the through-hole pin precision through-hole 6 of the mold through-hole guide 1 are precisely slidably engaged. The mold 3 is located in the inner hole of the large end of the mold through-hole guide 1, and the mold 3 and the inner hole of the mold through-hole guide 1 are precisely slidably engaged. The small end and the large end of the mold through-hole guide 1 have a strip-shaped observation hole 7 at their junction. The large end of the mold through-hole guide 1 has a mold removal opening 14 at its bottom.

[0033] The positioning structure is arranged between the mold through hole guide 1 and the mold 3, and the small-end top end of the mold through hole guide 1 is provided with a pinhole guide sleeve 8, and the through hole pin 2 is provided with an elastic buffer structure.

[0034] In use, the mold 3 is installed through the large-end inner hole of the mold through hole guide 1, and since the mold 3 and the mold through hole guide 1 are precisely slidably matched, the accuracy and stability of the mold 3 during installation are ensured, and meanwhile, the positioning structure between them further fixes the position of the mold 3, so that the mold 3 cannot be easily displaced during subsequent working processes, and the accuracy requirement of the whole tool is ensured.

[0035] The through hole pin 2 is inserted through the through hole pin precise via hole 6 formed at the small-end top end of the mold through hole guide 1, and since the through hole pin 2 and the through hole pin precise via hole 6 are precisely slidably matched, the through hole pin 2 can be accurately inserted into the corresponding position, and the pinhole guide sleeve 8 plays a guiding role at the top end of the through hole pin 2, helping the through hole pin 2 to more smoothly enter the through hole pin precise via hole 6, and ensuring the accuracy of installation.

[0036] During working processes, the working states of the mold 3 and the through hole pin 2 can be observed by an operator through the observation hole 7, such as whether they are in correct positions, whether displacement occurs, and the like, and if problems are found, timely adjustment can be performed.

[0037] When the through hole pin 2 is subjected to certain external force or appears slight vibration during working processes, the elastic buffer structure can absorb the energy, prevents the through hole pin 2 from causing damage to the mold 3 or other components, and meanwhile, can ensure that the accuracy of the through hole pin 2 is not affected.

[0038] When working is completed or the mold 3 needs to be replaced, the mold 3 can be taken out through the mold taking-out opening 14 formed at the large-end bottom end of the mold through hole guide 1, and this design facilitates the disassembly and replacement of the mold 3, and improves the use efficiency of the tool.

[0039] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 The utility model discloses still include, the positioning structure includes the positioning boss 4 that mold through hole guide 1 large-end inner side set, the mold 3 is opened with the positioning recess 5 that positioning boss 4 is mutually cooperated.

[0040] In use, when the mold is installed, the mold 3 is put into the mold through hole guide 1 large end mold extraction opening 14, the positioning protrusion 4 arranged on the inner side of the large end of the mold through hole guide 1 is corresponded with the positioning groove 5 previously arranged on the mold 3, as the mold 3 is deeply put into the inner hole of the mold through hole guide 1, the positioning protrusion 4 is gradually embedded into the positioning groove 5, because the positioning protrusion 4 and the positioning groove 5 are precisely matched in shape, the position of the mold 3 is accurately calibrated in the embedding process, once completely embedded, the two are tightly matched, the transverse and circumferential movement of the mold 3 in the inner hole of the mold through hole guide 1 is limited, in the subsequent through hole needle guiding stage and through hole operation stage, even if affected by external force, such as the reaction force generated when the through hole needle 2 is advanced, the mold 3 can be kept in the accurate initial position by virtue of the tight cooperation of the positioning protrusion 4 and the positioning groove 5, and deviation does not occur, so that the through hole needle 2 can always accurately align the center small hole of the mold 3, and the smooth operation and operation accuracy of the whole through hole operation are ensured.

[0041] As shown in Figure 1 , Figure 2 The utility model also includes, the through hole needle 2 is constituted by front end operation needle body 10 and rear end connecting needle body 11, and the elastic buffer structure includes needle body buffer connecting piece between front end operation needle body 10 and rear end connecting needle body 11.

[0042] In use, hand holds the through hole needle 2, and the front end operation needle body 10 is close to the needle hole guide sleeve 8 of the small end top end of the mold through hole guide 1, the needle hole guide sleeve 8 large aperture end guides the front end operation needle body 10 preliminary just in place, with the deepening, the small aperture end fine tunes its position, makes the front end operation needle body 10 smoothly enter the through hole needle precision via hole 6 of the mold through hole guide 1, guarantees initial positioning accuracy, and the rear end connecting needle body 11 moves along with the front end operation needle body 10, and at this time, the needle body buffer connecting piece is in the natural state, and prepares for the possible buffer of the subsequent.

[0043] As shown in Figure 1 , Figure 2 The utility model also includes, the needle body buffer connecting piece includes the buffer pad 12 arranged at the bottom end of the rear end connecting needle body 11, and the bottom end of the buffer pad 12 is connected with the top end of the front end operation needle body 10 with the spring 13.

[0044] In use, the rear end connecting needle body 11 moves forward, and then drives the front end working needle body 10 to advance in the through hole needle precision via hole 6 of the mold through hole guide 1, the operator observes the alignment of the front end working needle body 10 and the center small hole of the mold 3 through the observation hole 7 in real time, and continues to advance when the mold hole is aligned, if the front end working needle body 10 encounters a larger resistance, the needle body buffer connecting piece starts to play a role, the spring in the needle body buffer connecting piece is compressed and deformed, absorbs impact energy, avoids damage of the front end working needle body 10 due to excessive impact force, and the buffer pad disperses the reaction force of the spring, protects the hole wall of the mold 3, and the rear end connecting needle body 11 continuously provides advancing force under the action of the driving device,

[0045] Overcome part of the resistance, guarantee the through hole operation continues.

[0046] Exemplary, as shown in Figure 1 、 Figure 2 The utility model discloses still include, the needle hole guide bush 8 inside is equipped with the jack 9 that uses with through hole needle 2 cooperation, the jack 9 presents the horn mouth shape of big down small.

[0047] In use, when entering the through hole needle 2 guide stage, the operator holds the through hole needle 2 close to the needle hole guide bush 8 of the small end top end of the mold through hole guide 1, and the large diameter end is used as the initial guide position, because its opening is larger, the difficulty of the operator to initially align the through hole needle 2 with the through hole needle precision via hole 6 of the mold through hole guide 1 is reduced, even if the operator has certain deviation in initial positioning, the through hole needle 2 head can be guided into the jack 9 more easily, with the through hole needle 2 gradually going deep into the jack 9, the small diameter end starts to play a role, the size of the small diameter end gradually narrows, and the through hole needle 2 is more closely matched, the position of the through hole needle 2 can be accurately fine-tuned, in the process, the inner wall of the jack 9 continuously corrects the posture of the through hole needle 2, so that the axis of the through hole needle 2 gradually coincides with the axis of the through hole needle precision via hole 6 of the mold through hole guide 1, thereby ensuring that the through hole needle 2 can accurately and smoothly enter the through hole needle precision via hole 6 of the mold through hole guide 1, accurately positioning for subsequent through hole operation, greatly improving the accuracy of initial positioning of the through hole needle 2, reducing the inoperability caused by positioning errors, and improving the efficiency and success rate of the entire through hole operation.

[0048] Need to explain, the utility model discloses a fiber drawing coating mould through hole tool, slowly put into mould 3 from the mould of mould through hole guide 1 big end mould removal opening 14, in this process, the accurate sliding fit of mould 3 and the inner hole of mould through hole guide 1 guarantees the accuracy of installation, at the same time, the positioning lug 4 of the inner side of the big end of mould through hole guide 1 gradually embeds with the corresponding positioning recess 5 on mould 3, with the in-depth of mould 3, the positioning lug 4 is closely matched with the positioning recess 5, the accurate calibration of the position of mould 3 is completed, the transverse and circumferential movement of mould 3 in the inner hole of mould through hole guide 1 is limited, and mould 3 is stably positioned;

[0049] Handheld through hole needle 2, the front end working needle body 10 is close to the needle hole guide sleeve 8 of the small end top end of mould through hole guide 1, the insertion hole 9 in the needle hole guide sleeve 8 is in the shape of a large lower small horn mouth, the front end working needle body 10 is guided by the large aperture end to be initially positioned, the initial alignment difficulty is reduced, with the gradual in-depth of the front end working needle body 10, the small aperture end accurately fine tunes the position, so that the front end working needle body 10 smoothly enters the through hole precision via hole 6 of the mould through hole guide 1, the initial positioning accuracy is guaranteed, and the rear end connecting needle body 11 follows the movement, at this time, the needle body buffer connecting piece is in a natural state;

[0050] The rear end connecting needle body 11 moves forward, and then drives the front end working needle body 10 to advance in the through hole precision via hole 6 of the mould through hole guide 1, the operator observes the alignment condition of the front end working needle body 10 and the center small hole of mould 3 through the observation hole 7 at the joint of the small end and the big end of the mould through hole guide 1, continues to advance after aligning the mould hole, if the front end working needle body 10 encounters greater resistance, the spring in the needle body buffer connecting piece is compressed and deformed, impact energy is absorbed, the reaction force of the spring is dispersed by the buffer pad, the front end working needle body 10 is prevented from being damaged due to excessive impact force, and the hole wall of the mould 3 is protected, and the rear end connecting needle body 11 continuously provides advancing force under the action of the driving device, so that the through hole operation can continue.

[0051] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A through-hole tool for fiber drawing and coating molds, comprising a through-hole guide (1), a through-hole pin (2), and a mold (3), characterized in that, The top of the small end of the mold through hole guide (1) is provided with a through hole needle precision through hole (6). The through hole needle (2) is precisely slidably engaged with the through hole needle precision through hole (6) of the mold through hole guide (1). The mold (3) is located in the inner hole of the large end of the mold through hole guide (1), and the mold (3) is precisely slidably engaged with the inner hole of the mold through hole guide (1). A strip-shaped observation hole (7) is provided at the junction of the small end and the large end of the mold through hole guide (1). A mold removal opening (14) is provided at the bottom of the large end of the mold through hole guide (1). A positioning structure is provided between the mold through hole guide (1) and the mold (3). A pin hole guide sleeve (8) is provided at the top of the small end of the mold through hole guide (1). An elastic buffer structure is provided on the through hole needle (2).

2. The through-hole tool for optical fiber drawing and coating mold according to claim 1, characterized in that: The positioning structure includes a positioning protrusion (4) provided on the inner side of the large end of the mold through hole guide (1), and a positioning groove (5) provided on the mold (3) that cooperates with the positioning protrusion (4).

3. The through-hole tool for optical fiber drawing and coating mold according to claim 1, characterized in that: The through-hole needle (2) is composed of a front working needle body (10) and a rear connecting needle body (11), and the elastic buffer structure includes a needle body buffer connector between the front working needle body (10) and the rear connecting needle body (11).

4. The through-hole tool for optical fiber drawing and coating mold according to claim 3, characterized in that: The needle body buffer connector includes a buffer pad (12) disposed at the bottom of the rear connecting needle body (11), and a spring (13) is connected between the bottom of the buffer pad (12) and the top of the front working needle body (10).

5. The through-hole tool for optical fiber drawing and coating mold according to claim 1, characterized in that: The needle guide sleeve (8) has an insertion hole (9) inside that is used in conjunction with the through-hole needle (2). The insertion hole (9) is in the shape of a flared mouth that is larger at the top and smaller at the bottom.

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