Fiber optic finished rod furnace suspension device

Abstract

Fiber optic finished rod furnace suspension device, which relates to the technical field of clamping and transportation before the fiber optic finished rod enters the furnace, and is used to realize the transportation of the fiber optic finished rod before entering the furnace and the suspension when entering the furnace. It includes a transport rack and a turning rack. The bottom of the rear end of the transport rack is provided with walking wheels, and the bottom of the front end of the transport rack is provided with universal wheels. The turning rack is a hollow structure with an open top, front end, and rear end. There is a baffle at the front end of the inner cavity of the turning rack, and a clamping hoop is provided at the rear end of the inner cavity of the turning rack. The clamping hoop is used to clamp the handle of the fiber optic finished rod; a first ear plate of the turning rack is provided at the front end of the turning rack, and the first ear plate of the turning rack is hinge-connected to the transport rack through a hinge shaft. A turning assembly for driving the turning rack to rotate 90 degrees around the hinge shaft is provided inside the transport rack. The present invention can realize the transportation of the fiber optic finished rod in a horizontal state and the entry of the fiber optic finished rod into the furnace after being vertically suspended.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping and transporting of optical fiber finished rods before being put into a furnace, and specifically relates to a suspension device for an optical fiber finished rod to be put into a furnace. Background Art

[0002] In the optical fiber drawing process, the optical fiber finished rod is placed in a high-temperature drawing furnace and pulled downward. During the drawing process, the optical fiber finished rod is in a vertical state. Therefore, before drawing, the optical fiber finished rod needs to be vertically clamped on the drawing furnace. The length of the optical fiber finished rod is relatively large, generally 2 - 3 meters. During the transfer of the optical fiber finished rod from the previous process to the drawing process, the optical fiber finished rod should be kept in a horizontal state to reduce the overall height and facilitate transportation. In the prior art, the optical fiber finished rod is placed in a horizontal state during the transportation process, but when the optical fiber finished rod is hoisted to a vertical state, other equipment is needed to assist in completing the operation. Summary of the Invention

[0003] The purpose of the present invention is to provide a suspension device for an optical fiber finished rod to be put into a furnace, which is used to realize the transportation of the optical fiber finished rod before being put into the furnace and the suspension when being put into the furnace.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a suspension device for an optical fiber finished rod to be put into a furnace, including a transport frame and a flipping frame. The bottom of the rear end of the transport frame is provided with traveling wheels, and the bottom of the front end of the transport frame is provided with universal wheels. The flipping frame is a hollow structure with an open top, front end, and rear end. A baffle is provided at the front end of the inner cavity of the flipping frame, and a clamping hoop is provided at the rear end of the inner cavity of the flipping frame. The clamping hoop is used to clamp the handle of the optical fiber finished rod; a first ear plate of the flipping frame is provided at the front end of the flipping frame, and the first ear plate of the flipping frame is hinged to the transport frame through a hinge shaft. A flipping assembly for driving the flipping frame to rotate 90 degrees around the hinge shaft is arranged in the transport frame.

[0005] Further, the transport frame is integrally rectangular parallelepiped-shaped, the top and the front end of the transport frame are both open, the side wall of the transport frame is a frame structure, and a surrounding plate is provided on the outer wall of the transport frame.

[0006] Further, the clamping hoop includes a fixed clamp and a movable clamp. The fixed clamp is fixed in the flipping frame. One end of the movable clamp is hinged to one end of the fixed clamp. Locking ear plates are provided at the other ends of the movable clamp and the fixed clamp respectively. A screw is installed between the two locking ear plates. A locking pin is provided between the movable clamp and the fixed clamp, and the locking pin is used to insert into the handle.

[0007] Further, a plurality of roller supports are arranged in the flipping frame. The roller supports are rotationally connected to the flipping frame, and a contact surface in contact with the outer wall of the optical fiber finished rod is provided on the outer wall of the roller supports.

[0008] Further, the flipping assembly includes a flipping crank, a flipping connecting rod, and a driving mechanism. One end of the flipping crank is fixedly connected to the output end of the driving mechanism. The driving mechanism drives the flipping crank to swing. The other end of the flipping crank is hinged to one end of the flipping connecting rod. The rear end of the flipping frame has a second ear plate of the flipping frame, and the second ear plate of the flipping frame is hinged to the other end of the flipping connecting rod.

[0009] Further, the side wall of the flipping crank has a slider, and the left and right side walls of the transport frame have arc-shaped sliding grooves. The slider is slidably connected to the sliding grooves.

[0010] Further, the driving mechanism includes a motor, a worm fixed to the output end of the motor, and a worm gear meshing with the worm. The worm gear is fixedly connected to one end of the flipping crank.

[0011] Further, a positioning sleeve is slidably mounted on the flipping crank. The positioning sleeve is a hollow structure with open ends at both ends. The inner cavity of the positioning sleeve includes a first cavity and a second cavity. The inner wall of the first cavity contacts the outer wall of the flipping crank. An electric push rod for driving the positioning sleeve to move along the length direction of the flipping crank is provided on the flipping crank. When one end of the flipping connecting rod extends into the second cavity, the outer wall of one end of the flipping connecting rod contacts the inner wall of the second cavity. At this time, the flipping crank, the positioning sleeve, and the flipping connecting rod are relatively fixed in a straight line.

[0012] Further, the electric push rod is located inside the flipping crank. The push rod end of the electric push rod has a push block, and there is a fixing rod between the push block and the inner wall of the positioning sleeve.

[0013] Further, the front end of the transport frame has a folding frame. The folding frame is hinged to the transport frame. The universal wheels are located at the bottom of the folding frame. A locking mechanism is provided between the folding frame and the transport frame.

[0014] The beneficial effects of the present invention are as follows: The present invention places the optical fiber finished rod in the flipping frame in a horizontal state, thereby maintaining the horizontal state of the optical fiber finished rod during transportation, which is convenient for transportation. When the optical fiber finished rod is put into the furnace, by flipping the flipping frame from the horizontal state to the vertical state, it is convenient to clamp the optical fiber finished rod on the drawing furnace without the need for other auxiliary equipment. Description of the Drawings

[0015] Figure 1 is the front view of the first embodiment of the present invention;

[0016] Figure 2 is the top view of the first embodiment of the present invention;

[0017] Figure 3 is Figure 2 the A-A cross-sectional view in

[0018] Figure 4 The top view of the finished optical fiber rod placed on the present invention;

[0019] Figure 5 The schematic diagram of the finished optical fiber rod placed in the turnover frame;

[0020] Figure 6 The front view assembly drawing of the turnover frame and the turnover component;

[0021] Figure 7 The sectional view of the turnover crank and the turnover connecting rod;

[0022] Figure 8 The schematic diagram of the turnover frame being turned over driven by the rotation of the turnover crank;

[0023] Figure 9 The sectional view assembly drawing of the positioning sleeve and the electric push rod;

[0024] Figure 10 The front view assembly drawing of the electric push rod and the slider;

[0025] Figure 11 The schematic diagram of the turnover frame being turned over to the vertical state;

[0026] Figure 12 The sectional view assembly drawing of the positioning sleeve and the turnover crank, and the positioning sleeve and the turnover connecting rod;

[0027] Figure 13 The front view of the second embodiment of the present invention;

[0028] Figure 14 The top view of the second embodiment of the present invention;

[0029] Figure 15 The top view schematic diagram of the folding frame folded relative to the transport frame;

[0030] Figure 16 The front view schematic diagram of the folding frame folded relative to the transport frame before and after transporting the finished optical fiber rod to the wire drawing furnace;

[0031] Figure 17 The sectional view of the guide rail, the electric push rod and the push block;

[0032] In the figure: 1 is a transport rack, 11 is a side plate, 111 is a chute, 12 are traveling wheels, 13 are universal wheels, 14 is a transport rack ear plate, 15 is a handle, 16 is a folding rack, 2 is a flipping rack, 21 is a baffle, 22 are strip-shaped holes, 23 are idler rollers, 231 is a contact surface, 24 is a movable clamp, 241 is a locking ear plate, 242 is a locking pin, 25 is a fixed clamp, 26 is a first ear plate of the flipping rack, 27 is a second ear plate of the flipping rack, 3 is a finished optical fiber rod, 31 is a handle, 4 is a flipping connecting rod, 41 is a first side plate, 42 is a first connecting plate, 43 is a hinge shaft, 5 is a flipping crank, 51 is a second side plate, 52 is a second connecting plate, 53 is a slider, 54 is a guide rail, 541 is an avoidance hole, 6 is a positioning sleeve, 61 is a first cavity, 62 is a second cavity, 63 is an electric push rod, 64 is a push block, 65 is a fixed rod, 7 is a motor, 71 is a worm, 72 is a support, 73 is a worm gear, 8 is a locking block, 81 is a pin mounting seat, 82 is a pin, 83 is a handle. Detailed implementation manners

[0033] As Figures 1 to 16 shown, the present invention includes a transport rack 1, a flipping rack 2 and a flipping assembly. The present invention will be described in detail below with reference to the accompanying drawings.

[0034] Embodiment 1 of the present invention:

[0035] As Figures 1 to 4 shown, the finished optical fiber rod furnace suspension device includes a transport rack 1 and a flipping rack 2. The transport rack 1 is generally rectangular in shape. The top and front ends of the transport rack 1 are open. The side walls (left side wall, right side wall, rear side wall and bottom) of the transport rack 1 are of a frame structure. The outer wall of the transport rack 1 has a side plate 11. The setting of the side plate 11 realizes the sealing of the interior of the transport rack 1. At the bottom of the rear end of the transport rack 1, there are traveling wheels 12. At the bottom of the front end of the transport rack 1, there are universal wheels 13. On the rear side wall of the transport rack 1, there is a transport rack ear plate 14. A handle 15 is hinged to the transport rack ear plate 14. The setting of the handle 15 facilitates pulling the movement of the entire transport rack 1.

[0036] As Figure 3As shown in the figure, the flipping frame 1 is a hollow structure with openings at the top, front, and rear. At the front end of the inner cavity of the flipping frame 2, there is a baffle 21, and the baffle 21 has a strip-shaped hole 22. At the rear end of the inner cavity of the flipping frame 2, there is a clamping hoop, which includes a fixed clamp 25 and a movable clamp 24. The fixed clamp 25 is fixed inside the flipping frame 2. One end of the movable clamp 24 is hinged to one end of the fixed clamp 25. Both the other end of the movable clamp 24 and the other end of the fixed clamp 25 have locking ear plates 241. A screw is installed between the two locking ear plates 241 to realize the relative fixation of the fixed clamp 25 and the movable clamp 24. There is a locking pin 242 between the movable clamp 24 and the fixed clamp 25. The locking pin 242 is used to insert into the handle 31 of the finished optical fiber rod 3. At this time, the finished optical fiber rod 3 is hung on the clamping hoop. Both the fixed clamp 25 and the movable clamp 24 have semi-circular clamping grooves, and the clamping grooves on the fixed clamp 25 and the movable clamp 24 cooperate to form a circular cavity for clamping the handle 31.

[0037] During use, as Figure 4 shown, first place the handle 31 of the finished optical fiber rod 3 on the fixed clamp 25, then buckle the movable clamp 24 on the fixed clamp 25, insert the locking pin 242 among the movable clamp 24, the handle 31, and the fixed clamp 25, and install a screw between the two locking ear plates 241. At this time, the clamping of the handle 31 of the finished optical fiber rod 3 is realized through the clamping hoop. To realize the auxiliary support for the finished optical fiber rod 3, as Figure 2 shown, there are multiple idler rollers 23 inside the flipping frame 2. The idler rollers 12 are rotatably connected to the left and right side walls of the flipping frame 1. The outer wall of the idler roller 23 has a contact surface 231 that contacts the outer wall of the finished optical fiber rod 3. As Figure 5 shown, the contact surface 231 contacts the outer wall of the finished optical fiber rod 3, playing an auxiliary supporting role for the finished optical fiber rod 3.

[0038] As Figure 3 、 Figure 5 shown, the front end of the flipping frame 2 has a first ear plate 26 of the flipping frame. The first ear plate 26 of the flipping frame is hinged to the transportation frame 1 through a hinge shaft 43. There is a flipping assembly inside the transportation frame 1 that drives the flipping frame 2 to rotate 90 degrees around the hinge shaft 43. As Figure 11 shown, under the action of the flipping assembly, the flipping frame 2 changes from a horizontal state to a vertical state.

[0039] As Figure 6 、 Figure 7 shown, the flipping assembly includes a flipping crank 5, a flipping connecting rod 4, and a driving mechanism. One end of the flipping crank 5 is fixedly connected to the output end of the driving mechanism. The driving mechanism drives the flipping crank 5 to swing. The other end of the flipping crank 5 is hinged to one end of the flipping connecting rod 4 through another hinge shaft 43. The rear end of the flipping frame 2 has a second ear plate 27 of the flipping frame. The second ear plate 27 of the flipping frame is hinged to the other end of the flipping connecting rod 4. AsFigure 8 As shown, when the driving mechanism acts to drive the turning crank 5 to swing clockwise, the turning frame 2 is driven by the turning link 4 to rotate counterclockwise around the hinge shaft 43. When the turning assembly acts, the movement track of the turning crank 5 is an arc. To realize the guidance of the movement of the turning crank 5, as Figure 3 shown, the inner wall of the enclosing plate 11 has an arc-shaped sliding groove 111, as Figure 6 shown, the outer wall of the turning crank 5 has an arc-shaped slider 53, and the slider 53 is slidably installed in the corresponding sliding groove 111.

[0040] As Figure 7 shown, the turning link 4 includes two first side plates 41 arranged in parallel and several first connecting plates 42 arranged between the two first side plates 41. The turning crank 5 includes two second side plates 51 arranged in parallel and several second connecting plates 52 arranged between the two second side plates 51. The turning crank 5 and the turning link 4 have a small structural weight but a large structural strength. The width of the turning link 4 is greater than the width of the turning crank 5, and the other end of the turning crank 5 is placed between the two first side plates 41 of the turning link 4.

[0041] As Figure 6 shown, the driving mechanism includes a motor 7, a worm 71 fixed to the output end of the motor 7, and a worm gear 73 meshing with the worm 71. The worm gear 73 is fixedly connected to one end of the turning crank 5. The worm shaft of the worm 71 is rotatably connected to the transport frame 1 through a support 72, and a bearing is arranged on the support 72.

[0042] As Figure 6 , Figure 7 shown, a positioning sleeve 6 is slidably installed on the turning crank 5. As Figure 9 shown, the positioning sleeve 6 is a hollow structure with open ends at both ends. The inner cavity of the positioning sleeve 6 includes a first cavity 61 and a second cavity 62, and the width of the second cavity 62 is greater than the width of the first cavity 61. The inner wall of the first cavity 61 contacts the outer wall of the turning crank 5. There is an electric push rod 63 on the turning crank 5 to drive the positioning sleeve 6 to move along the length direction of the turning crank 5. When one end of the turning link 4 extends into the second cavity 62, the outer wall of one end of the turning link 4 contacts the inner wall of the second cavity 62. At this time, the turning crank 5, the positioning sleeve 6 and the turning link 4 are relatively fixed in the same straight line. When the turning crank 5 and the turning link 4 are in the same straight line, the turning assembly is in the dead point position. As Figure 12 shown, the other end of the turning crank 5 extends into the first cavity 61, and one end of the turning link 4 extends into the second cavity 62. At this time, the positioning sleeve 6 makes the turning crank 5 and the turning link 4 collinear at the dead point position, thereby maintaining the stability of the turning frame 2 in the vertical state.

[0043] As Figure 7As shown, the electric push rod 63 is located inside the flipping crank 5 and is fixed to the second connecting plate 52. As Figure 9 , Figure 10 shown, the push rod end of the electric push rod 63 has a push block 64, and there is a fixing rod 65 between the push block 64 and the inner wall of the positioning sleeve 6. When the electric push rod 63 acts, it drives the movement of the push block 64 and the positioning sleeve 6. To guide the movement of the push block 64, as Figure 7 shown, a guide rail 54 is provided inside the flipping crank 5, and the guide rail 54 is fixed to the second connecting plate 52. The guide rail 54 is a hollow structure. As Figure 17 shown, the guide rail 54 is located on the extension line of the electric push rod 63, the push block 64 is slidably arranged inside the guide rail 54, and the side wall of the guide rail 54 has an avoidance hole 541 for avoiding the fixing rod 65. When the push block 64 moves inside the guide rail 54, the fixing rod 65 moves inside the avoidance hole 541.

[0044] Embodiment Two of the present invention:

[0045] As Figures 13 to 16 shown, the difference between Embodiment Two and Embodiment One is only that the front end of the transport rack 1 has a folding rack 16, and the folding rack 16 is a part of the transport rack 1. Specifically: the folding rack 16 is hingedly connected to the front end of the transport rack 1, the universal wheels 13 are located at the bottom of the folding rack 16, and there is a locking mechanism between the folding rack 16 and the transport rack 1. The locking mechanism includes a locking block 8 fixed to the top of the folding rack 16, a pin mounting seat 81 fixed to the top of the front end of the transport rack 1, and a pin 82 movably arranged on the pin mounting seat 81. The locking block 8 has a locking hole. When the pin 82 is inserted into the locking hole on the locking block 8, as Figure 14 shown, the folding rack 16 is parallel to the side wall of the transport rack 1, and at this time the entire suspension device is in the transport state. Before and after moving the suspension device to the drawing furnace, as Figure 15 , Figure 16 shown, the pin 82 is removed from the locking block 8, and then the folding rack 16 is flipped backward. At this time, more parts of the flipping rack 2 are exposed from the transport rack 1, so as to facilitate hanging the optical fiber finished rod 3 on the drawing furnace. A handle 83 is provided at the end of the pin 82 to facilitate operating the pin 82 to enter or exit the locking hole.

[0046] During use, place the optical fiber finished rod 3 on the flipping rack 2 in a horizontal state. After clamping the handle 31 of the optical fiber finished rod 3 through the clamping hoop, the entire suspension device can be pushed to move to transport the optical fiber finished rod 3. After arriving beside the drawing furnace, the motor 7 can be started to change the flipping rack 2 from a horizontal state to a vertical state. At this time, the optical fiber finished rod 3 can be clamped on the chuck of the drawing furnace.

[0047] In the present invention, the finished optical fiber rod is placed in a turnover rack in a horizontal state, so as to maintain the horizontal state of the finished optical fiber rod during transportation, thus facilitating transportation. When the finished optical fiber rod is put into the furnace, by turning the turnover rack from the horizontal state to the vertical state, it is convenient to clamp the finished optical fiber rod on the wire drawing furnace without the need for other auxiliary equipment.

Claims

1. Suspension device for finished optical fiber preform entering furnace, characterized in that It includes a transport frame and a tipping frame. At the bottom of the rear end of the transport frame, there are traveling wheels, and at the bottom of the front end of the transport frame, there are universal wheels. The tipping frame is a hollow structure with an open top, front end, and rear end. At the front end of the inner cavity of the tipping frame, there is a baffle, and at the rear end of the inner cavity of the tipping frame, there is a clamping hoop, and the clamping hoop is used to clamp the handle of the finished optical fiber rod. At the front end of the tipping frame, there is a first ear plate of the tipping frame, and the first ear plate of the tipping frame is hinged to the transport frame through a hinge shaft. Inside the transport frame, there is a tipping component for driving the tipping frame to rotate 90 degrees around the hinge shaft. At the front end of the transport frame, there is a folding frame, and the folding frame is hinged to the transport frame. The universal wheels are located at the bottom of the folding frame, and there is a locking mechanism between the folding frame and the transport frame.

2. The fiber optic preform ingot furnace suspension device according to claim 1, wherein, The transport frame is generally rectangular parallelepiped-shaped, with an open top and front end. The side walls of the transport frame are frame structures, and there are enclosing plates on the outer walls of the transport frame.

3. The optical fiber finished rod feeding and hanging device according to claim 1, characterized in that, The clamping hoop includes a fixed clamp and a movable clamp. The fixed clamp is fixed inside the tipping frame. One end of the movable clamp is hinged to one end of the fixed clamp. At the other ends of the movable clamp and the fixed clamp, there are locking ear plates, and a screw is installed between the two locking ear plates. There is a locking pin between the movable clamp and the fixed clamp, and the locking pin is used to insert into the handle.

4. The fiber optic preform feeding and suspension device according to claim 1, characterized in that, There are multiple idler rollers inside the tipping frame, and the idler rollers are rotatably connected to the tipping frame. The outer wall of the idler roller has a contact surface that contacts the outer wall of the finished optical fiber rod.

5. The fiber optic preform rod furnace suspension device according to claim 1, characterized in that, The tipping component includes a tipping crank, a tipping connecting rod, and a driving mechanism. One end of the tipping crank is fixedly connected to the output end of the driving mechanism, and the driving mechanism drives the tipping crank to swing. The other end of the tipping crank is hinged to one end of the tipping connecting rod. At the rear end of the tipping frame, there is a second ear plate of the tipping frame, and the second ear plate of the tipping frame is hinged to the other end of the tipping connecting rod.

6. The optical fiber preform rod feeding and suspension device according to claim 5, characterized in that, On the side wall of the tipping crank, there is a slider, and on the left and right side walls of the transport frame, there are arc-shaped chutes, and the slider is slidably connected to the chute.

7. The optical fiber preform rod feeding and suspension device according to claim 5, characterized in that, The driving mechanism includes a motor, a worm fixed to the output end of the motor, and a worm gear meshing with the worm, and the worm gear is fixedly connected to one end of the tipping crank.

8. The fiber preform rod feeding and suspension device according to claim 5, characterized in that, A positioning sleeve is slidably installed on the tipping crank. The positioning sleeve is a hollow structure with open ends at both ends. The inner cavity of the positioning sleeve includes a first cavity and a second cavity. The inner wall of the first cavity contacts the outer wall of the tipping crank. On the tipping crank, there is an electric push rod for driving the positioning sleeve to move along the length direction of the tipping crank. When one end of the tipping connecting rod extends into the second cavity, the outer wall of one end of the tipping connecting rod contacts the inner wall of the second cavity. At this time, the tipping crank, the positioning sleeve, and the tipping connecting rod are relatively fixed in a straight line.

9. The fiber preform rod feeding and suspension device in the furnace according to claim 8, characterized in that, The electric push rod is located inside the tipping crank. At the end of the push rod of the electric push rod, there is a push block, and there is a fixing rod between the push block and the inner wall of the positioning sleeve.

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