Electrode position correction device for portable cover plate glass kiln

Abstract

The utility model discloses a portable electrode position correction device of cover plate glass kiln belongs to the field of overflow down-draw method production cover plate glass kiln, including roof and advance screw rod, the both ends of roof width direction outside are equipped with fixed frame respectively, and fixed frame can with the detachable installation of electrode outside both ends fixed bolster, is equipped with sliding slot on the roof, and the inside of roof width direction is provided with L type's first limit board and second limit board, and first and second limit board are spaced distribution up and down, the cavity that roof and first, second limit board form has placed advance nut, and the outside diameter of advance nut is greater than the height of sliding slot and the clearance height of first limit board and second limit board respectively, and the free end of advance screw rod passes through sliding slot and the clearance of first limit board and second limit board in proper order, and the free end of advance screw rod is used for advancing the electrode to be corrected, can flexible dismounting, flexible adjustment and tight position, convenient operation can make corresponding electrode pair restore to the position of directly opposite.

Description

Technical Field

[0001] This utility model belongs to the field of overflow pull-down method for producing cover glass furnaces, specifically a convenient electrode position correction device for cover glass furnaces. Background Technology

[0002] In the process of producing cover glass using the overflow down-draw method, the furnace is a device that melts the glass raw material into a liquid state. It is a hybrid heating furnace with electric heating as the main method and natural gas heating as an auxiliary method. The electric heating is achieved by multiple heating circuits composed of several pairs of electrodes placed on both sides of the furnace (each pair of electrodes forms a heating circuit), which apply current to the glass raw material in the furnace, thereby heating the glass and making it reach the melting temperature.

[0003] Electrodes are continuously consumed during use in the kiln (the amount of electrode consumption determines the service life of the kiln). In order to ensure heating efficiency, the electrodes need to be pushed into the kiln periodically.

[0004] The electrodes are divided into upper and lower layers. Existing electrode propulsion devices, such as... Figure 1 and Figure 2 As shown, since the position of the lead screw 12 that applies the thrust to the upper electrode 10 and the lower electrode 11 in the fixed bracket 8 is fixed, sometimes the electrode will tilt slightly during the advancement process and will not be perpendicular to the kiln wall 9. This will cause the electrode to wear out more and the heating efficiency to decrease. At the same time, the corresponding electrode pairs on both sides of the kiln 9 are not aligned, which will affect the heating efficiency of the electrode pairs. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a convenient electrode position correction device for a covered glass furnace, which solves the problems of increased electrode consumption and decreased heating efficiency caused by current electrode tilting. It can be flexibly disassembled and adjusted, and the tightening position can be adjusted flexibly, making it convenient to operate and allowing the corresponding electrode pairs to be restored to the correct position.

[0006] This utility model is achieved through the following technical solution:

[0007] A convenient electrode position correction device for a covered glass furnace includes a top plate and a push screw;

[0008] The top plate is provided with fixed frames at both ends of the outer side in the width direction. The fixed frames are used to be detachably installed with the fixed brackets at both ends of the outer side of the electrode to be calibrated. The top plate is provided with a sliding groove. The inner side of the top plate in the width direction is provided with an L-shaped first limiting plate and a second limiting plate. The first limiting plate and the second limiting plate are distributed at intervals.

[0009] A push nut is placed in the cavity formed by the top plate, the first limiting plate, and the second limiting plate. The outer diameter of the push nut is greater than the height of the sliding groove and the gap height between the first limiting plate and the second limiting plate, respectively. The free end of the push screw passes through the sliding groove and the gap between the first limiting plate and the second limiting plate in sequence. The free end of the push screw is used to push the electrode to be corrected.

[0010] The further improvement of this utility model is as follows:

[0011] The fixing frame includes a first clamping screw and a second clamping screw distributed horizontally, and a clamping plate distributed vertically.

[0012] After the first clamping screw and the second clamping screw pass through the top plate from the outside to the inside in a direction perpendicular to the top plate, the roots of the first clamping screw and the second clamping screw are in contact with the inner side of the top plate. The inner sides of the first clamping screw and the second clamping screw are in contact with the two sides of the fixing brackets at both ends of the outer side of the electrode to be corrected. A clamping plate is sleeved on the free end of the first clamping screw and the second clamping screw. The distance between the inner side of the clamping plate and the outer side of the top plate is greater than the length of the fixing brackets at both ends of the outer side of the electrode to be corrected. Clamping nuts are distributed on the outer side of the clamping plate and respectively sleeved on the free end of the first clamping screw and the second clamping screw.

[0013] The second clamping screw is located inside the first clamping screw, and the two ends of the sliding groove are respectively close to the second clamping screw of the corresponding fixed frame.

[0014] The center of the sliding groove coincides with the center of the top plate.

[0015] The height of the sliding groove is 0.5~1cm larger than the outer diameter of the lead screw.

[0016] The lead screw is also equipped with a push handle.

[0017] The horizontal ends of the first limiting plate and the second limiting plate are welded to the inner side of the top plate in the width direction.

[0018] The first limiting plate and the second limiting plate are symmetrically distributed along the central axis of the sliding groove. The lower end of the vertical side of the first limiting plate is lower than the top of the sliding groove, and the upper end of the vertical side of the second limiting plate is higher than the bottom of the sliding groove.

[0019] The width of the cavity formed by the top plate, the first limiting plate, and the second limiting plate is 0.5 to 1 cm larger than the thickness of the push nut.

[0020] An insulating sleeve is also provided at the free end of the lead screw.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] This invention provides a convenient electrode position correction device for a covered glass furnace. During the operation of the electrode pair, the electrode may sometimes tilt after being advanced. A fixed frame is installed according to the tilt position. A sliding groove is provided on the top plate to flexibly adjust the left and right positions of the tightening screw. The cavity formed by the sliding groove and the first and second limiting plates restricts the position of the advancing nut. After the free end of the advancing screw passes through the sliding groove and the gap between the first and second limiting plates, the advancing screw is rotated forward by the advancing nut. At this time, the advancing screw receives a backward reaction force from the electrode, which is transmitted to the top plate through the advancing nut. The top plate then transmits the backward force to the fixed support, thus allowing the advancing screw to maintain a slow advancing speed, thereby achieving the purpose of pushing the electrode forward and ultimately aligning it in the correct position. This flexible electrode position correction device can be moved up, down, left, and right on the fixed support. The tightening position can be flexibly installed and adjusted according to the actual tilt of the electrode after advancement, ensuring that the tilted electrode is perpendicular to the furnace wall, reducing electrode erosion, optimizing heating effect, achieving the purpose of aligning the electrode, improving heating efficiency, and reducing electrode consumption. This utility model can be flexibly disassembled and the tightening position can be flexibly adjusted, making it convenient to operate and allowing the corresponding electrode pairs to be restored to their correct positions. Attached Figure Description

[0023] Figure 1 This is a front view of the electrode propulsion device in an existing covered glass furnace.

[0024] Figure 2 This is a schematic diagram of the tilted perspective of the electrode propulsion device for an existing covered glass furnace.

[0025] Figure 3 This is a schematic diagram showing the installation of the convenient electrode position correction device described in this utility model.

[0026] Figure 4 This is a schematic diagram of the convenient electrode position correction device described in this utility model.

[0027] Figure 5 This is a schematic diagram of the convenient electrode position correction device described in this utility model during electrode advancement.

[0028] In the diagram: 1. Top plate; 21. First clamping screw; 22. Second clamping screw; 3. Clamping plate; 4. Clamping nut; 51. First limiting plate; 52. Second limiting plate; 6. Pushing nut; 7. Pushing screw; 8. Fixed bracket; 9. Kiln wall; 10. Upper electrode; 11. Lower electrode; 12. Screw. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0030] This utility model discloses a convenient electrode position correction device for use in a covered glass furnace, which allows for flexible assembly, disassembly, and adjustment of the clamping position. Figure 4 As shown, it includes a vertically distributed top plate 1 and a horizontally distributed lead screw 7. The top plate 1 has fixing frames at both ends on its outer side in the width direction. These two fixing frames can be detachably installed with the fixing brackets 8 at both ends on the outer side of the electrode to be calibrated. See also... Figure 1 Two L-shaped parallel and spaced-apart fixing brackets 8 are fixed to the ground at their lower ends and to the upper surface of the upper electrode 10 at their horizontal short sides. The fixing frame specifically includes a horizontally distributed first clamping screw 21 and second clamping screw 22, and a vertically distributed clamping plate 3. The first clamping screw 21 and second clamping screw 22 pass through the top plate 1 from the outside to the inside in a direction perpendicular to the top plate 1, and their roots are in contact with the inner side of the top plate 1. The first clamping screw 21 and second clamping screw 22 are made of bolts with a relatively small outer diameter, so the roots of the first clamping screw 21 and second clamping screw 22 are the heads of the bolts. The inner sides of the first clamping screw 21 and the second clamping screw 22 are respectively attached to the two sides of the fixed brackets 8 at both ends of the outer side of the electrode to be calibrated. A clamping plate 3 is sleeved on the free ends of the first clamping screw 21 and the second clamping screw 22. The distance between the inner side of the clamping plate 3 and the outer side of the top plate 1 is greater than the length of the fixed brackets 8 at both ends of the outer side of the electrode to be calibrated. In this way, when the clamping plate 3 is attached to the fixed bracket 8, a clamping nut 4 is sleeved on the free ends of the first clamping screw 21 and the second clamping screw 22 on the outer side of the clamping plate 3 to clamp the fixed bracket 8, thereby achieving the purpose of flexible disassembly and assembly and flexible adjustment of the clamping position.

[0031] This invention features a rectangular sliding groove on the top plate 1, communicating with the outside. An L-shaped first limiting plate 51 and a second limiting plate 52 are further arranged on the inner side of the groove in the width direction, spaced vertically. A push nut 6 is placed in the cavity formed by the top plate 1, the first limiting plate 51, and the second limiting plate 52. The outer diameter of the push nut 6 is greater than the height of the sliding groove and the gap between the first limiting plate 51 and the second limiting plate 52. Thus, when the free end of the push screw 7 passes through the sliding groove and the gap between the first limiting plate 51 and the second limiting plate 52 in sequence, and the free end of the push screw 7 pushes the electrode to be corrected inward and the work is completed, the nut 6 is confined within the cavity for convenient use next time.

[0032] The top plate 1 and clamping plate 3 can be fixed to the fixed brackets 8 on both sides behind the electrode by clamping screw 2 and clamping nut 4. By adjusting the tightness of clamping nut 4, they can move up and down on the fixed brackets 8. The top plate 1 and clamping plate 3 can be flexibly assembled and disassembled on the fixed brackets 8 by clamping screw 2 and clamping nut 4. The top plate 1 and the L-shaped limiting plate form a limiting shell. The push nut 6 can move left and right within the limiting shell and can prevent the push nut 6 from coming out.

[0033] The upper electrode 10 and the lower electrode 11 are advanced forward by lead screws 12 rotatably connected to the fixed brackets 8 on both sides of the rear. When the electrodes tilt upward, as... Figure 3 As shown, because the lead screw 12 corresponding to the upper electrode 10 is not in the center, pushing it forward can easily cause the upper electrode 10 to tilt slightly upward. The fixing frame of the electrode position correction device of this invention is installed at the upper position of the upper electrode 10. The push lead screw 7 is pushed forward by rotating the push nut 6. At this time, the push lead screw 7 receives a backward reaction force, which is transmitted to the top plate 1 through the push nut 6. The top plate 1 transmits the backward force to the fixing bracket 8, thus allowing the push lead screw 7 to maintain a slow pushing speed. Figure 5 As shown, this achieves the purpose of pushing the upper electrode 10 forward, thereby correcting the position of the upper electrode 10. Similarly, if the lower electrode 11 is slightly tilted downward, the fixing frame is installed at its lower position, and the same process is followed to correct the position of the lower electrode 11. Therefore, it is necessary to adjust the electrode at the corresponding position according to the actual tilt of the electrode, without interfering with the existing electrode pushing device, so as to restore it to normal.

[0034] Specifically, the second clamping screw 22 in the fixed frame is located inside the first clamping screw 21. The two ends of the sliding groove can be close to the corresponding second clamping screw 22 in the fixed frame, thus expanding the range of left and right movement of the push screw 7. Furthermore, to facilitate and ensure structural stability, the center of the sliding groove can coincide with the center of the top plate 1. In addition, to avoid unnecessary shaking of the push screw 7 during propulsion, the height of the sliding groove only needs to be 0.5~1cm larger than the outer diameter of the push screw 7.

[0035] To facilitate operation, this invention includes a push handle at the end of the push screw 7. Furthermore, to conserve thrust, the length of the push screw 7 on the inner and outer sides of the top plate 1 needs further control. Additionally, an insulating sleeve is provided at the free end of the push screw 7. This sleeve provides insulation when the push screw 7 contacts the electrode. Simultaneously, the contact surface between the insulating sleeve and the electrode is larger than the contact surface between the free end of the push screw 7 and the electrode, reducing the pressure on the electrode and thus protecting it.

[0036] As a preferred embodiment, in this invention, the horizontal ends of the first limiting plate 51 and the second limiting plate 52 are welded to the inner side of the top plate 1 in the width direction. Specifically, the first limiting plate 51 and the second limiting plate 52 are symmetrically distributed along the central axis of the sliding groove length direction. The lower end of the vertical side of the first limiting plate 51 is lower than the top of the sliding groove, and the upper end of the vertical side of the second limiting plate 52 is higher than the bottom of the sliding groove. Furthermore, in order to control the size of the push screw 7 within the limiting shell during the pushing process, the width of the cavity formed by the top plate 1, the first limiting plate 51, and the second limiting plate 52 needs to be 0.5~1cm larger than the thickness of the push nut 6.

Claims

1. A portable electrode position correction device for a covered glass furnace, characterized in that, Includes top plate (1) and push screw (7); The top plate (1) has fixed frames at both ends of its outer side in the width direction. The fixed frames are detachably installed with the fixed brackets (8) at both ends of the outer side of the electrode to be calibrated. The top plate (1) has a sliding groove. The top plate (1) has an L-shaped first limiting plate (51) and a second limiting plate (52) in the width direction. The first limiting plate (51) and the second limiting plate (52) are distributed vertically at intervals. A push nut (6) is placed in the cavity formed by the top plate (1), the first limiting plate (51), and the second limiting plate (52). The outer diameter of the push nut (6) is greater than the height of the sliding groove and the gap height between the first limiting plate (51) and the second limiting plate (52). The free end of the push screw (7) passes through the sliding groove and the gap between the first limiting plate (51) and the second limiting plate (52) in sequence. The free end of the push screw (7) is used to push the electrode to be corrected.

2. The electrode position correction device for a portable covered glass furnace according to claim 1, characterized in that, The fixed frame includes a first clamping screw (21) and a second clamping screw (22) distributed horizontally, and a clamping plate (3) distributed vertically. After the first clamping screw (21) and the second clamping screw (22) pass through the top plate (1) from the outside to the inside in a direction perpendicular to the top plate (1), the roots of the first clamping screw (21) and the second clamping screw (22) are in contact with the inner side of the top plate (1). The inner sides of the first clamping screw (21) and the second clamping screw (22) are in contact with the two sides of the fixing bracket (8) at both ends of the outer side of the electrode to be corrected. A clamping plate (3) is sleeved on the free end of the first clamping screw (21) and the second clamping screw (22). The distance between the inner side of the clamping plate (3) and the outer side of the top plate (1) is greater than the length of the fixing bracket (8) at both ends of the outer side of the electrode to be corrected. Clamping nuts (4) are distributed on the outer side of the clamping plate (3) and respectively sleeved on the free end of the first clamping screw (21) and the second clamping screw (22).

3. The electrode position correction device for a portable covered glass furnace according to claim 2, characterized in that, The second clamping screw (22) is located inside the first clamping screw (21), and the two ends of the sliding groove are respectively close to the second clamping screw (22) of the corresponding fixed frame.

4. The electrode position correction device for a portable covered glass furnace according to claim 3, characterized in that, The center of the sliding groove coincides with the center of the top plate (1).

5. The electrode position correction device for a portable covered glass furnace according to claim 1, characterized in that, The height of the sliding groove is 0.5~1cm larger than the outer diameter of the lead screw (7).

6. The electrode position correction device for a portable covered glass furnace according to claim 1, characterized in that, The lead screw (7) is also equipped with a push handle.

7. The electrode position correction device for a portable covered glass furnace according to claim 1, characterized in that, The horizontal ends of the first limiting plate (51) and the second limiting plate (52) are welded to the inner side of the top plate (1) in the width direction.

8. The electrode position correction device for a portable covered glass furnace according to claim 1, characterized in that, The first limiting plate (51) and the second limiting plate (52) are symmetrically distributed along the central axis of the sliding groove. The lower end of the vertical side of the first limiting plate (51) is lower than the top of the sliding groove, and the upper end of the vertical side of the second limiting plate (52) is higher than the bottom of the sliding groove.

9. The electrode position correction device for a portable covered glass furnace according to claim 1, characterized in that, The width of the cavity formed by the top plate (1), the first limiting plate (51), and the second limiting plate (52) is 0.5~1cm larger than the thickness of the push nut (6).

10. The portable electrode position correction device for a covered glass furnace according to claim 1, characterized in that, An insulating sleeve is also provided at the free end of the push screw (7).

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