CN213357355U

CN213357355U - Weighing structure

Info

Publication number: CN213357355U
Application number: CN202021694296.9U
Authority: CN
Inventors: 马三宝; 陈坤; 吴仪温; 张文其; 高虎军; 靳守卿; 陈金; 梅金娟
Original assignee: Hangzhou Yongte Information Technology Co ltd
Current assignee: Hangzhou Yongte Information Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-06-04
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a structure of weighing, sets up in optical fiber perform's deposition equipment, deposition equipment is including the clamping structure that is located one end on the first direction, be located the basic platform of the other end on the first direction, the structure of weighing set up in on the basic platform. The utility model discloses a fix optical fiber perform's one end centre gripping on the holder, and optical fiber perform's the other end is placed on the gyro wheel to only need through its rotation of the rotary driving piece drive of optical fiber perform one end can, and need not all to set up rotary driving piece at optical fiber perform's both ends, thereby not only can effectual saving cost, and can prevent that optical fiber perform's both ends from leading to the cracked risk of optical fiber perform because of the rotational speed difference.

Description

Weighing structure

Technical Field

The utility model belongs to the technical field of the mechanical skill and specifically relates to a structure of weighing is related to.

Background

The optical fiber perform is the core of the optical fiber manufacturing technology field, and along with the rapid development of the optical communication industry, the optical fiber market competition is more and more intense, so that the quality of the optical fiber perform is improved, the manufacturing cost of the optical fiber perform is reduced, and the optical fiber perform becomes the technical problem which is urgently needed to be solved at present. In the manufacturing technology of the optical fiber preform rod, an outside tube vapor deposition method (OVD) and a combination method thereof become the main flow direction for preparing the optical fiber preform rod due to high deposition rate and unlimited deposition outer diameter. However, most of the current deposition equipment usually controls the deposition weight of the loose body based on the diameter of the loose body measured by laser, and the diameter and weight deviation of the loose body are large due to large laser measurement deviation at high temperature, which finally affects the drawing parameters of the finished optical fiber preform and generates a large amount of optical fiber scrap.

Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure of weighing that can effectively solve above-mentioned technical problem.

In order to achieve the purpose of the utility model, the following technical proposal is adopted:

the utility model provides a structure of weighing, sets up in optical fiber perform's deposition equipment, deposition equipment is including the clamping structure who is located first direction one end, the basic platform that is located the first direction other end, the structure of weighing include weighing sensor, set up in last link of weighing sensor and set up in support piece on the link, set up in wheel components on the support piece, weighing sensor fixes on the basic platform.

Preferably, the weighing sensor is fixedly connected with the connecting frame, and the supporting piece is fixedly connected with the connecting frame.

Preferably, the roller assembly is disposed at an upper end of the supporter.

Preferably, the middle part of the upper surface of the support member is provided with an arc-shaped surface, the central axis of the arc-shaped surface is parallel to the central axis of the optical fiber perform, and the arc-shaped surface is provided with accommodating grooves which are arranged oppositely in the axial direction.

Preferably, the roller assembly includes a support shaft and a roller rotatably disposed on the support shaft, and an end of the support shaft is received in the receiving groove.

Preferably, the longitudinal section of the end of the supporting shaft is non-circular, and the accommodating groove is matched with the end of the supporting shaft.

Preferably, the weighing structure further comprises a heat shield sleeved outside the weighing sensor, and the heat shield is also sleeved at the upper end of the connecting frame.

Preferably, the height of the optical fiber preform rod at the end of the supporting member is 1-3mm lower than the height of the optical fiber preform rod at the end of the clamping structure.

Preferably, the deposition apparatus further comprises a torch structure at one end in the second direction, and an exhaust hood at the other end in the second direction.

Preferably, the torch structure comprises a movable torch table and a plurality of torches arranged on the torch table.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the structure of weighing is through fixing the one end centre gripping of optical fiber perform on the holder, and the other end of optical fiber perform places on the gyro wheel, thereby only need through the rotatory driving piece drive its rotation of optical fiber perform one end can, and need not all set up the rotatory driving piece at optical fiber perform's both ends, thereby not only can effectual saving cost, and can prevent that the both ends of optical fiber perform from leading to the cracked risk of optical fiber perform because of the rotational speed difference; in addition, in the deposition process, the weighing sensor can accurately measure the weight of the loose body, the error is small, the influence of temperature is avoided, and the precision is high; meanwhile, the deposition can be automatically stopped when the weight of the loose body reaches the preset weight by matching with the control module, and the automation degree is high; and the tip of back shaft is non-circular and with the shape adaptation of accepting groove, not only can prevent that the back shaft from rotating to can conveniently take it the change, make things convenient for the maintenance in later stage, reduce cost of maintenance.

Drawings

FIG. 1 is a schematic structural view of a deposition apparatus to which the weighing structure of the present invention is applied;

fig. 2 is a schematic structural view of the weighing structure of the present invention shown in fig. 1;

fig. 3 is a perspective view of a supporting member and a roller assembly of the weighing structure of the present invention shown in fig. 2;

fig. 4 is a top view of the supporting member and the roller assembly of the weighing structure of the present invention shown in fig. 3.

Detailed Description

The weighing structure of the present invention will be described in detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 to 4, the weighing structure of the present invention is disposed in a deposition apparatus of an optical fiber preform, the deposition apparatus includes a deposition chamber 6, a clamping structure 1 disposed at one end of the deposition chamber 6 in a first direction, a base platform 4 disposed at the other end of the deposition chamber 6 in the first direction and opposite to the clamping structure 1, an exhaust hood 3 disposed at one end of the deposition chamber 6 in a second direction, a burner structure 2 disposed at the other end of the deposition chamber 6 in the second direction and opposite to the exhaust hood 3, the optical fiber preform 7 disposed between the clamping structure 1 and the base platform 4 and capable of depositing a loose object 8 on the optical fiber preform 7, the optical fiber preform 7 disposed between the exhaust hood 3 and the burner structure 2, the first direction being a length direction of the optical fiber preform 7, and the first direction and the second direction are perpendicular to each other. In other embodiments, the first direction is preferably a horizontal direction, the second direction is preferably a vertical direction, the exhaust hood 3 is preferably disposed above the optical fiber preform 7, and the burner structure 2 is preferably disposed below the optical fiber preform 7.

As shown in fig. 1, the clamping structure 1 includes a rotary driving member 11 and a clamping member 12 disposed on the rotary driving member 11, one end of the optical fiber preform 7 is clamped on the clamping member 12 to fix one end of the optical fiber preform 7, the clamping member 12 is connected to an output end of the rotary driving member 11, so that the rotary driving member 11 can drive the clamping block 12 to rotate, and further drive the optical fiber preform to rotate, the rotary driving member 11 is preferably a motor or a servo motor, the clamping member 12 is preferably a chuck, and the rotary driving member 11 and the clamping member 12 are directly or indirectly fixed on the deposition cabin 6. When the rotary driving member 11 drives the clamping member 12 and the optical fiber perform 7 to rotate, the rotation speed is preferably 300 to 50 r/min.

As shown in fig. 1, the burner structure 2 includes a burner platform 21 and a plurality of burners 22 disposed on the burner platform 21 and facing the exhaust hood 3, the burner platform 21 is slidably disposed on the deposition chamber 6, and the burner platform 21 can move along a first direction and a second direction. The number of the torches 22 is several, the torches 22 are preferably equidistantly distributed on one surface of the torch table 21, the torches 22 are located between the torch table 21 and the optical fiber preform 7, and the torches 22 are opposite to the optical fiber preform 7 so as to deposit silica soot particles on the surface of the optical fiber preform 7. When the torch 22 deposits silica powder particles on the surface of the optical fiber preform 7, the moving speed of the torch table 21 in the first direction is preferably 600 to 2500 mm/min. When the weight and the diameter of the loose objects 8 on the optical fiber preform 7 gradually increase, the torch table 21 may move in the second direction away from the optical fiber preform 7, for example, in the present embodiment, the torch table 21 moves downward, at which time the speed of the torch table 21 moving in the second direction is proportionally changed, for example, linearly proportional, with the weight of the loose objects 8, so as to increase the deposition rate, and when the weight of the loose objects 8 reaches a predetermined weight, at which time the torch 22 stops feeding the silicon tetrachloride vapor, the flame is extinguished, and the torch table 21 returns to the deposition start position to stop moving.

As shown in fig. 1, the base platform 4 is directly or indirectly fixed on the deposition cabin 6, and the base platform 4 and the clamping structure 1 are respectively located at two ends of the optical fiber preform 7.

As shown in fig. 1 to 4, the weighing structure 5 is disposed on the base platform 4, and the end of the optical fiber preform 7 is placed on the weighing structure 5, so as to weigh the optical fiber preform 7, and further obtain the weight of the loose objects 8.

The weighing structure 5 comprises a weighing sensor 51, a connecting frame 52 arranged on the weighing sensor 51, a heat insulation cover 53 sleeved on the upper end of the connecting frame 52 and the weighing sensor 51, a support 54 arranged on the connecting frame 52, and a roller assembly arranged on the support 54. The load cell 51 is preferably a pressure sensor, and preferably a resistance strain gauge, the load cell 51 being fixed to the base platform 4. The connecting frame 52 is fixedly connected with the weighing sensor 51, and the supporting member 54 is fixedly connected with the connecting frame 52, in other embodiments, the weighing sensor 51 and the supporting member 54 are respectively arranged at two ends of the connecting frame 52, and further, the connecting frame 52 is in a shape of a zigzag; furthermore, the connecting frame 52 includes a first portion 521 located above, a second portion 522 disposed at one end of the first portion 521 and perpendicular to the first portion, and a third portion 523 disposed at a lower end of the second portion 522 and perpendicular to the second portion, the first portion 521, the second portion 522, and the third portion 523 are in a zigzag shape and are integrally formed, an upper end of the weighing sensor 51 is fixedly connected to a lower surface of the first portion 521, and a lower end of the supporting member 54 is fixedly connected to an upper surface of the third portion 533. The heat shield 53 is preferably made of a heat insulating material, the heat shield 53 is connected to a pipeline (not shown), the inside of the pipeline is communicated with the inside of the heat shield 53, and the end of the pipeline is connected to compressed cooling air so that the compressed cooling air is conveyed into the heat shield 53 through the pipeline to cool the weighing sensor 51 inside the heat shield 53. The support 54 may be a rectangular parallelepiped, or may be an "L" shape, or other geometric body capable of supporting the optical fiber preform 7, in this embodiment, the supporting member 54 is "L" shaped, the upper surface of the supporting member 54 is provided with a groove 541, the groove 541 is formed by being depressed downward from the upper surface of the supporter 54, the middle portion of the upper surface of the supporter 54 is provided with an arc-shaped surface 542, the end portion of the optical fiber preform 7 is placed within the arc-shaped face 542, so that the end portion of the optical fiber preform 7 is restrained on the arc-shaped face 542, without falling off above the support 54, the central axis of the arc-shaped face 542 is parallel to the central axis of the optical fiber preform 7, a plurality of accommodating grooves 543 are formed in the surface of the arc-shaped surface 542, a plurality of accommodating grooves 543 are oppositely arranged along the axial direction of the arc-shaped surface 542, in this embodiment, four receiving grooves 543 are disposed at two sides of the lower portion of the optical fiber preform 7. The roller assembly comprises a support shaft 551 and a plurality of rollers 55 rotatably disposed on the support shaft 551, the number of the support shaft 551 is several, in this embodiment, the number of the support shaft 551 is two, the central axes of the support shaft 551 are parallel to each other and parallel to the central axis of the optical fiber preform 7, the end of the support shaft 551 is accommodated in the accommodating groove 543, the end of the support shaft 551 is preferably rectangular, the accommodating groove 543 is matched with the end of the support shaft 551 in shape, so as to stably support the support shaft 551, prevent the support shaft 551 from rotating, improve the support stability of the optical fiber preform 7, and facilitate the roller assembly to be detached and replaced, the number of the rollers 55 is several, in this embodiment, the two rollers 55 are respectively rotatably disposed on the support shaft 551, so that the roller 55 can be stably rotated on the support shaft 551 and the end of the optical fiber preform 7 is placed on the roller 55, so that the end of the optical fiber preform 7 can be conveniently rotated on the roller 55, the frictional force is reduced, and the abrasion of the end of the optical fiber preform 7 can be reduced. The roller 55 is made of Polyimide (PI), PEEK material or teflon high temperature resistant material.

As shown in FIG. 1, the height of the end position E of the optical fiber perform 7 on the weighing structure 5 is 1-3mm lower than the height of the end position S of the optical fiber perform 7 on the clamping member 12.

The weighing structure further comprises a control module (not shown), the control module can be a processor with computing capability, can also be a PLC, or other elements with computing capability, the control module is connected with the weighing sensor 51 and the blowtorch 22, the weighing sensor 51 transmits weight data of the loose objects 8 detected by the weighing sensor to the control module, the control module processes the received data, and when the weight of the loose objects 8 received by the control module reaches a preset weight, the control module controls the blowtorch 22 to be turned off, so that deposition can be automatically stopped.

As shown in fig. 1 to 4, the utility model discloses weighing structure is when using, at first with optical fiber perform 7's left end fixed on holder 12, and optical fiber perform 7's right-hand member is placed on support piece 54, specifically for placing on gyro wheel 55, thereby play firm supporting role to optical fiber perform 7, optical fiber perform 7's weight passes through support piece 54 this moment, link 52 transmits to weighing sensor 51 on, weighing sensor 51 can be with its data transmission to the control module who detects, control module can be shown with the display structure that control module is connected after handling it. Then, the rotary drive 11 starts rotating, the optical fiber preform 7 is driven to rotate by the gripper 12, and the torch 22 starts depositing carbon dioxide soot particles on the optical fiber preform 7. With the temperature rise, compressed cooling air can be supplied into the heat shield 53 through a pipe communicating with the heat shield 53, so that the temperature lowering process of the weighing sensor 51 can be performed. During the deposition process, the heavy sensor 51 transmits the weight data of the loose objects 8 detected by the heavy sensor in real time to the control module, and the control module controls the torch 22 to be turned off when detecting that the weight of the loose objects 8 reaches a preset weight, and the deposition process is stopped at this moment. Therefore, the utility model discloses the structure use of weighing describes and finishes.

Claims

1. The utility model provides a structure of weighing sets up in optical fiber perform's deposition equipment, deposition equipment is including the clamping structure who is located first direction one end, the basic platform that is located the first direction other end, its characterized in that: the weighing structure comprises a weighing sensor, a connecting frame arranged on the weighing sensor, a supporting piece arranged on the connecting frame, and a roller assembly arranged on the supporting piece, wherein the weighing sensor is fixed on the basic platform.

2. The weighing structure of claim 1, wherein: the weighing sensor is fixedly connected with the connecting frame, and the supporting piece is fixedly connected with the connecting frame.

3. The weighing structure of claim 2, wherein: the roller assembly is arranged at the upper end of the support piece.

4. The weighing structure of claim 3, wherein: the middle part of the upper surface of the support piece is provided with an arc-shaped surface, the central axis of the arc-shaped surface is parallel to the central axis of the optical fiber perform rod, and the arc-shaped surface is provided with accommodating grooves which are arranged oppositely in the axial direction.

5. The weighing structure of claim 4, wherein: the roller assembly comprises a support shaft and a roller rotatably arranged on the support shaft, and the end part of the support shaft is contained in the containing groove.

6. The weighing structure of claim 5, wherein: the longitudinal section of the end part of the supporting shaft is non-circular, and the accommodating groove is matched with the end part of the supporting shaft.

7. The weighing structure of claim 6, wherein: the weighing structure further comprises a heat insulation cover sleeved outside the weighing sensor, and the heat insulation cover is also sleeved at the upper end of the connecting frame.

8. The weighing structure of claim 7, wherein: the height of the optical fiber perform rod at one end of the supporting piece is 1-3mm lower than that of the optical fiber perform rod at one end of the clamping structure.

9. The weighing apparatus of claim 8, wherein the deposition device further comprises a torch structure at one end in the second direction, and a hood at the other end in the second direction.

10. The weighing structure of claim 9, wherein: the blowtorch structure includes mobilizable blowtorch platform and set up in a plurality of blowtorches on the blowtorch platform.