PLATE GLASS TEMPERING COOLING SYSTEM

Abstract

A plate glass tempering cooling system includes an air collecting box, an air grid, and a conveying roller. An air inlet of the air collecting box is in communication with an air supply device, and the air collecting box and the air grid are connected through several ventilation tubes. The system further includes: a damper, configured to open or close the ventilation tubes; a driving mechanism, configured to drive the damper to control closing and an opening range of the damper; an encoder, configured to monitor information about a movement position of a plate glass on the conveying roller; and a control unit, configured to receive position information of the plate glass that is fed back by the encoder, and send an instruction to the driving mechanism to control the closing and the opening range of the damper.

Claims

1. A plate glass tempering cooling system, comprising an air collecting box, an air grid, and a conveying roller, an air inlet of the air collecting box being in communication with an air supply device, the air collecting box and the air grid being connected through several ventilation tubes, and the system further comprising: a damper, disposed between the air collecting box and the air grid, and configured to open or close the ventilation tubes; a driving mechanism, configured to drive the damper, to control closing and an opening range of the damper; an encoder, connected to the conveying roller, and configured to monitor information about a movement position of a plate glass on the conveying roller; and a control unit, electrically connected to the encoder and the driving mechanism respectively, and configured to receive position information of the plate glass that is fed back by the encoder, and send an instruction to the driving mechanism, to control the closing and the opening range of the damper.

2. The plate glass tempering cooling system according to claim 1, wherein the several ventilation tubes are each provided with a damper.

3. The plate glass tempering cooling system according to claim 1, wherein the ventilation tube comprises an air-out pipe disposed on the air collecting box and corresponding to the air inlet of the air grid, and the damper is disposed in the air-out pipe.

4. The plate glass tempering cooling system according to claim 2, wherein the damper is disposed at one end of the ventilation tube close to the air inlet of the air grid.

5. The plate glass tempering cooling system according to claim 1, wherein the driving mechanism drives the damper to rotate to open or close the ventilation tube.

6. The plate glass tempering cooling system according to claim 4, wherein the driving mechanism comprises a driving device and a swing arm, and the swing arm has one end hingedly connected to the driving device and the other end fixedly connected to the damper.

7. The plate glass tempering cooling system according to claim 4, wherein the driving mechanism comprises a driving device, a swing arm, and a connecting rod, a plurality of swing arms are disposed along a length direction of the connecting rod, each swing arm has one end hingedly connected to the connecting rod and the other end fixedly connected to one damper, an end portion of the connecting rod is connected to the driving device, and the driving device drives the swing arm to swing through the connecting rod, to cause the damper to rotate.

8. The plate glass tempering cooling system according to claim 1, wherein the driving mechanism is connected to the damper, to drive the damper to move along a direction perpendicular to an axis of the ventilation tube, to open or close the ventilation tube in which the damper is located.

9. The plate glass tempering cooling system according to claim 1, wherein the ventilation tube is provided with a hose.

10. The plate glass tempering cooling system according to claim 1, wherein the control unit is a programmable logic controller (PLC) or an industrial personal computer (IPC).

11. The plate glass tempering cooling system according to claim 6, wherein the driving device is an air cylinder or a hydraulic cylinder.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram showing that a plate glass reciprocates in a tempering cooling section in the prior art;

[0025] FIG. 2 is a schematic structural diagram of the present disclosure;

[0026] FIG. 3 is a schematic structural diagram of a first implementation of a driving mechanism according to the present disclosure;

[0027] FIG. 4 is a schematic structural diagram of a second implementation of a driving mechanism according to the present disclosure; and

[0028] FIG. 5 is a schematic structural diagram of a third implementation of a driving mechanism according to the present disclosure.

[0029] Reference numerals: 1. Tempering cooling section, 2. Conveying roller, 3. Left endpoint, 4. Right endpoint, 5. Plate glass, 6. Air collecting box, 7. Air-out pipe, 8. Damper, 9. Air pipe, 10. Air inlet of air grid, 11. Air grid, 12. Driving device, 13. Swing arm, 14. Connecting rod.

DETAILED DESCRIPTION

[0030] As shown in the figure, a plate glass tempering cooling system includes an air collecting box 6, an air grid 11, and a conveying roller. An air inlet of the air collecting box 6 is in communication with an air supply device, and the air collecting box 6 and the air grid 11 are connected through several ventilation tubes 9. A damper 8 is disposed between the air collecting box 6 and the air grid 11 and is configured to open or close the ventilation tube 9. The ventilation tube 9 includes an air-out pipe 7 disposed on the air collecting box 6 and corresponding to an air inlet of the air grid, the damper 8 is disposed in the air-out pipe 7, and each air-out pipe 7 is provided with a damper 8. The damper 8 may alternatively be disposed at one end of the ventilation tube 9 close to the air inlet 10 of the air grid. The damper 8 is driven by a driving mechanism, to control closing and an opening range of the damper 8. The tempering cooling system further includes an encoder and a control unit. The encoder is connected to a conveying roller 2, and configured to monitor information about a movement position of a plate glass 5 on the conveying roller 2. The control unit is electrically connected to the encoder and the driving mechanism respectively, and configured to receive position information of the plate glass 5 that is fed back by the encoder, and send an instruction to the driving mechanism to control the closing and the opening range of the damper 8.

[0031] The driving mechanism controls the damper 8 in two manners. In a first manner, the driving mechanism drives the damper 8 to rotate to open or close the ventilation tube 9. In a second manner, the driving mechanism drives the damper 8 to move along a direction perpendicular to an axis of the ventilation tube 9, to open or close the ventilation tube 9 in which the damper 8 is located.

[0032] In the first manner, two specific control manners are further included: the dampers 8 work independently or the dampers 8 work synchronously.

[0033] As shown in FIG. 3, when the dampers 8 work independently, each damper 8 corresponds to one set of driving mechanism. The driving mechanism includes a driving device 12 and a swing arm 13, the driving device 12 may be an air cylinder or a hydraulic cylinder, and the swing arm 13 has one end hingedly connected to the driving device 12 and the other end fixedly connected to the damper 8. Preferably, the damper 8 is fixedly connected to a rotation shaft, an end portion of the rotation shaft passes through a tube wall in which the rotation shaft is located and is fixedly connected to the swing arm 13, and the driving device 12 drives the swing arm 13 and the damper 8 to rotate around a specified axis, thereby opening or closing the ventilation tube 9 in which the damper 8 is located, where the axis is located at a position where the end of the swing arm 13 and the driving device are hingedly connected.

[0034] As shown in FIG. 4, when at least two dampers 8 work synchronously, the driving mechanism includes a driving device 12, a swing arm 13, and a connecting rod 14, the driving device 12 may be an air cylinder or a hydraulic cylinder, the swing arm 13 has one end fixedly connected to the damper 8 and the other end hingedly connected to the connecting rod 14, and an end portion of the connecting rod 14 is connected to the driving device 12. Preferably, the damper 8 is fixedly connected to a rotation shaft, and an end portion of the rotation shaft passes through a tube wall in which the rotation shaft is located and is fixedly connected to the swing arm 13. During operation, the driving device 12 works to drive the connecting rod 14 to move, to drive the swing arm 13 and the damper 8 to rotate around a specified axis, thereby opening or closing the ventilation tube 9 in which the damper 8 is located, where the axis is located at a position where the swing arm 13 and the connecting rod 14 are hingedly connected.

[0035] For the second manner, as shown in FIG. 5, the driving mechanism uses an air cylinder, a hydraulic cylinder, or other mechanisms that can achieve linear reciprocating motion as the driving device 12. The driving device 12 is directly connected to the damper 8, opens or closes the ventilation tube 9 by driving the damper 8 to linearly move, and controls the opening range.

[0036] A working process of the tempering cooling system of the present disclosure is as follows:

[0037] After entering the tempering cooling section 1, the plate glass 5 reciprocates on the conveying roller 2 to be quickly cooled to complete the tempering processing. A process in which the plate glass 5 decelerates towards a direction near the left endpoint 3 or the right point 4 until it becomes static and then accelerates towards a direction away from the left endpoint 3 or the right endpoint 4 is referred to as a direction changing process of the plate glass 5. When the plate glass 5 enters the process, the control unit receives position information of the plate glass 5 that is fed back by the encoder, and sends an instruction to the driving mechanism, to close the damper 8 to a first position through the driving mechanism. When the plate glass 5 leaves the left endpoint 3 or the right endpoint 4 and completes the direction changing process, the control unit sends an instruction to the driving mechanism, to open the damper 8 to a second position. An opening range of the damper 8 at the first position is less than an opening range of the damper 8 at the second position.

[0038] The opening range of the damper 8 at the first position and the opening range of the damper 8 at the second position may be set according to a thickness and a type of the plate glass 5, and the wind pressure during tempering cooling. For example, the opening range at the first position may be 0% (that is, the damper 8 is fully closed), or may be 20%; the opening range at the second position may be 100% (that is, the damper 8 is fully open), or may be 80%; and it should be ensured that the opening range of the damper 8 at the first position is less than the opening range of the damper 8 at the second position.