GT tempering furnace air grid lifting device

Abstract

The utility model discloses a purpose lies in providing a kind of GT toughening furnace air grid lifting device, belong to glass deep processing technical field, including servo motor, planetary reducer and two transmission screw rods, the output of servo motor is connected with the input of planetary reducer, the output of planetary reducer is symmetrically connected with transmission shaft, one end of transmission shaft is equipped with bevel gear one respectively, transmission screw rod is equipped with the bevel gear two meshing with bevel gear one in one end close to transmission shaft, and the both ends of transmission screw rod are respectively meshed with vertical ball screw, the ball nut on ball screw is connected with air grid support. By using the utility model, the accurate positioning and quick response of air grid lifting can be realized, and the reliable lifting of air grid during toughening, the accurate descending of air grid after toughening to avoid cold ring are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of glass deep processing technology, specifically relating to a GT tempering furnace air grid lifting device. Background Technology

[0002] The GT tempering furnace is a core piece of equipment in the field of glass deep processing. It tempers glass through high-temperature heating and rapid cooling (air grid tempering). The air grid assembly is a key component to ensure the quality of tempering. During the tempering process, after the glass leaves the heating section, the air grid needs to be close to the glass to achieve uniform air cooling. After tempering is completed, the air grid needs to be moved away from the glass to make room for subsequent glass transportation.

[0003] The existing air grid lifting mechanism of GT tempering furnaces mostly adopts the cylinder drive method. The cylinder drive solution has problems such as low lifting accuracy and large start-stop impact caused by air pressure fluctuation. It cannot accurately control the lifting position of the air grid, and the air grid is prone to scratching the cold ring of the transport glass due to insufficient descent, causing glass scratches or damage to the cold ring structure. Utility Model Content

[0004] This invention addresses the problems of low lifting accuracy and large start-stop impact caused by air pressure fluctuations in existing GT tempering furnace cylinder-driven air grate lifting mechanisms. These mechanisms cannot accurately control the lifting position of the air grate and are prone to scratching the glass or damaging the cold ring structure due to incomplete descent. This invention provides a GT tempering furnace air grate lifting device. By using this invention, precise positioning and rapid response of the air grate lifting can be achieved, ensuring reliable air grate lifting during tempering and precise descent of the air grate after tempering to avoid the cold ring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A GT tempering furnace air grate lifting device includes a servo motor, a planetary reducer, and two transmission screws. The output end of the servo motor is connected to the input end of the planetary reducer. The output end of the planetary reducer is symmetrically connected to a transmission shaft. One end of the transmission shaft is provided with a bevel gear one, and the end of the transmission screw near the transmission shaft is provided with a bevel gear two that meshes with the bevel gear one. Vertical ball screws are meshed at both ends of the transmission screw, and ball nuts on the ball screws are connected to the air grate bracket.

[0006] Furthermore, the drive shaft is perpendicular to the lead screw.

[0007] Furthermore, the number of ball screws is four sets, located at the four top corners of the wind grid bracket.

[0008] Furthermore, the outer side of the ball screw is provided with support columns, and the two ends of the support columns are respectively connected to the ball screw through connecting plates.

[0009] Furthermore, couplings are provided at both ends of the transmission screw.

[0010] Furthermore, a bearing seat is provided at the bottom of the transmission screw.

[0011] Furthermore, the ball nut is connected to the air grille bracket via a nut seat.

[0012] Furthermore, it also includes a servo control system, which includes a servo driver and a PLC controller, wherein the servo driver is connected to the servo motor and the PLC controller via optical fiber.

[0013] The beneficial effects of this utility model are as follows: 1. By using this utility model, precise positioning can be achieved, avoiding scratching of the cold ring: This utility model adopts a transmission combination of servo motor + planetary reducer + ball screw, combined with closed-loop position feedback control, the air grid lifting position error is ≤±0.1mm, which can be accurately reduced to the "safe height of the cold ring", completely solving the problem of cold ring scratching caused by insufficient precision in existing mechanisms.

[0014] 2. Fast response, adaptable to production rhythm: The start and stop response time of the servo motor is <0.2s, which can quickly complete the "lift-temper-lower" action according to the instructions of the PLC controller, adapting to the continuous production rhythm of the GT tempering furnace and improving production efficiency.

[0015] 3. Stable operation and guaranteed tempering quality: The cooperation between the lifting unit and the ball screw pair eliminates the sway during the lifting process of the air grille, ensuring that the distance between the air grille body and the glass is uniform during the tempering stage, improving the consistency of glass cooling, and ensuring tempering quality.

[0016] 4. High reliability and reduced maintenance costs: The planetary reducer and ball screw pair have excellent wear resistance. Compared with the easily damaged seals of cylinder drive and the gear transmission of ordinary motor, the mean time between failures (MTBF) of this mechanism is increased by more than 50%, reducing the frequency and cost of equipment maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Wherein: 1-Servo motor; 2-Planetary reducer; 3-Drive screw; 4-Drive shaft; 5-Ball screw; 6-Air grille bracket; 7-Support column; 8-Connecting plate; 9-Coupling; 10-Bearing seat; 11-Nut seat. Detailed Implementation

[0018] The present invention will be further described with reference to the accompanying drawings.

[0019] As shown in the figure, a GT tempering furnace air grate lifting device includes a servo motor 1, a planetary reducer 2, and two transmission screws 3. The output end of the servo motor 1 is connected to the input end of the planetary reducer 2. The output end of the planetary reducer 2 is symmetrically connected to a transmission shaft 4. One end of the transmission shaft 4 is provided with a bevel gear 1. The end of the transmission screw 3 near the transmission shaft 4 is provided with a bevel gear 2 that meshes with the bevel gear 1. The two ends of the transmission screw 3 are respectively meshed with vertical ball screws 5. The ball nuts on the ball screws 5 are connected to the air grate support 6.

[0020] Furthermore, the transmission shaft 4 is perpendicular to the transmission lead screw 3.

[0021] Furthermore, the number of ball screws 5 is four sets, which are located at the four top corners of the wind grid bracket 6.

[0022] Furthermore, the outer side of the ball screw 5 is provided with support columns 7, and the two ends of the support columns 7 are respectively connected to the ball screw 5 through connecting plates 8.

[0023] Furthermore, couplings 9 are provided at both ends of the transmission screw 3.

[0024] Furthermore, the bottom of the transmission screw 3 is provided with a bearing seat 10.

[0025] Furthermore, the ball nut is connected to the air grille bracket 6 via the nut seat 11.

[0026] Furthermore, it also includes a servo control system, which includes a servo driver and a PLC controller. The servo driver is connected to the servo motor 1 and the PLC controller via optical fibers.

[0027] When the glass is heated and removed from the furnace, the air grille rises to temper the glass. At this time, the servo motor starts, outputting rotational power. This power is transmitted and redirected via a drive shaft, driving multiple sets of ball screws to rotate synchronously. Simultaneously, the ball nuts mounted on the screws move upwards in a straight line under the rotation of the screws, thus lifting the connected air grille to the preset tempering blowing position, bringing the air grille close to the glass in preparation for tempering.

[0028] Once the glass tempering is complete, and the air grille needs to descend to avoid the cold ring during glass transport, the servo motor reverses its rotation, causing the ball screw to rotate in the opposite direction. The ball nut then moves downwards along the ball screw, which in turn lowers the air grille back to a safe position, avoiding the cold ring and preventing scratches during glass transport.

Claims

1. A lifting device for the air grate of a GT tempering furnace, characterized in that: The device includes a servo motor (1), a planetary reducer (2), and two drive screws (3). The output end of the servo motor (1) is connected to the input end of the planetary reducer (2). The output end of the planetary reducer (2) is symmetrically connected to a drive shaft (4). One end of the drive shaft (4) is provided with a bevel gear one. The end of the drive screw (3) near the drive shaft (4) is provided with a bevel gear two that meshes with the bevel gear one. The two ends of the drive screw (3) are respectively meshed with vertical ball screws (5). The ball nuts on the ball screws (5) are connected to the air grid bracket (6).

2. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: The drive shaft (4) is perpendicular to the drive screw (3).

3. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: The number of ball screws (5) is four sets, which are located at the four top corners of the wind grid bracket (6).

4. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: The outer side of the ball screw (5) is provided with support columns (7), and the two ends of the support columns (7) are connected to the ball screw (5) through connecting plates (8).

5. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: The transmission screw (3) is provided with couplings (9) at both ends.

6. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: The bottom of the transmission screw (3) is provided with a bearing seat (10).

7. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: The ball nut is connected to the air grille bracket (6) via a nut seat (11).

8. The air grate lifting device for a GT tempering furnace according to claim 1, characterized in that: It also includes a servo control system, which includes a servo driver and a PLC controller. The servo driver is connected to the servo motor (1) and the PLC controller via optical fiber.

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