A float glass edge cooling device and production line

Abstract

The present application provides a float glass edge cooling device and production line, wherein the float glass edge cooling device is used to cool the edge of glass running along a roller conveyor, comprising: a first bracket arranged along a first direction, with a bottom end fixed to a frame on one side of the roller conveyor and a top end higher than the surface of the glass; a second bracket arranged along a second direction with adjustable length and height, connected to the top end of the first bracket and extending toward the side of the glass; a cooling assembly, one end of which is connected to the second bracket and the other end of which contacts the edge of the glass; a temperature measuring assembly, comprising two temperature measuring elements distributed along the running direction of the roller conveyor, the two temperature measuring elements being located on either side of the cooling assembly and used to measure the temperature of the edge of the glass; a cooling water source, flowing into the cooling assembly through a flow control assembly, thereby cooling the glass in contact with the cooling assembly; the flow control assembly being capable of automatically controlling the flow of the cooling water source based on the temperature difference between the two temperature measuring elements.

Description

Technical Field

[0001] The present application relates to the field of glass production technology, and in particular to a float glass edge cooling device and production line. Background Art

[0002] In float glass production, after annealing, the glass needs to continue flowing through the conveyor line for a period of time to slowly cool down. Due to space constraints, existing float glass production lines lack the space for an extended cooling section after the annealing furnace. Direct cutting without cooling can cause cracks on the glass edges, impacting product quality. The quality of the cut edges directly affects downstream customers' processing and use, and in severe cases, can even result in scrap and a decrease in yield. Based on the requirements for glass annealing, a cooling device is required at the glass edges to ensure a reasonable temperature gradient along the drawing direction and the width of the glass, thereby achieving ideal cutting results. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a float glass edge cooling device and production line.

[0004] In a first aspect, the present application provides a float glass edge cooling device for cooling the edge of glass running along a roller conveyor, comprising:

[0005] A first bracket arranged along the first direction, with its bottom end fixed to a frame on one side of the roller conveyor and its top end higher than the glass surface;

[0006] a second bracket with adjustable length and height arranged along a second direction, connected to the top end of the first bracket and extending toward the center of the glass;

[0007] a cooling component, one end of which is connected to the second bracket and the other end of which is in contact with the edge of the glass;

[0008] A temperature measuring assembly, comprising two temperature measuring elements distributed along the running direction of the roller, the two temperature measuring elements being arranged on both sides of the cooling assembly for measuring the temperature of the glass edge;

[0009] A cooling water source flows into the cooling component through a flow control component to cool the glass in contact with the cooling component;

[0010] The flow control component can automatically control the flow of the cooling water source according to the temperature difference between the two temperature measuring elements.

[0011] According to the technical solution provided in the embodiment of the present application, a water storage tank is provided in parallel with the pipeline of the cooling water source, which is used to enable the cooling device to continue working in the event of abnormal water supply; and a temperature control component is provided on the water storage tank.

[0012] According to the technical solution provided in the embodiment of the present application, the height of the second bracket is adjusted by a screw provided on the first bracket, and the second bracket is connected to the nut of the screw.

[0013] According to the technical solution provided in the embodiment of the present application, the length of the second bracket is adjusted by a cylinder, one end of the cylinder is connected to the nut, and the piston end of the cylinder is connected to the second bracket.

[0014] According to the technical solution provided in the embodiment of the present application, the cooling component includes a curved guard plate hinged to the second bracket through a first hinge and a water-absorbing soft plate fixed on the inner side of the curved guard plate and in contact with the glass surface.

[0015] According to the technical solution provided in the embodiment of the present application, a groove is provided on the second bracket, and the first connecting piece is provided in the groove, including a rotating shaft fixed in the groove, a rotating ring is provided on the outer sleeve of the rotating shaft, and the outer wall of the rotating ring is fixedly connected to the arc-shaped guard plate.

[0016] According to the technical solution provided in the embodiment of the present application, the number of the cooling components is two, which can be switched for use by a cooling replacement device, and the cooling replacement device includes:

[0017] a third bracket arranged along the running direction of the roller, wherein both ends of the third bracket are respectively connected to cooling components capable of contacting the glass surface;

[0018] a fourth bracket arranged along the first direction, one end of which is fixed to the second bracket, and the other end of which is hinged to the middle portion of the third bracket via a second hinge;

[0019] a lifting drive assembly, one end of which is fixed to the second bracket and the other end of which is connected to one end of the third bracket, for driving the lifting assembly connected to the third bracket to move up and down along the first direction, so that the two lifting assemblies alternately contact the glass surface;

[0020] A three-way assembly, wherein the cooling water source flows into the three-way assembly through the flow control assembly, and the three-way assembly controls the cooling water source to flow into the cooling assembly in contact with the glass surface.

[0021] According to the technical solution provided in the embodiment of the present application, the lifting drive assembly is an electric push rod.

[0022] According to the technical solution provided in the embodiment of the present application, the second hinged member includes a first connecting plate and a second connecting plate, one end of the first connecting plate is connected to the fourth bracket, and the other end is connected to one end of the second connecting plate through a pin shaft, and the other end of the second connecting plate is connected to the middle part of the third bracket.

[0023] In a second aspect, the present application provides a production line, comprising the above-mentioned float glass edge cooling devices installed on both sides of the roller conveyor.

[0024] In summary, the present application proposes a float glass edge cooling device, wherein a first bracket with an adjustable height and a top higher than the glass surface is provided on one side of a roller conveyor, a second bracket with an adjustable length is connected to the first bracket, the second bracket extends to the top of the glass, and a cooling component that is in direct contact with the glass surface is connected to the second bracket; two temperature measuring elements are distributed along the direction of the roller conveyor, and the two temperature measuring elements are on both sides of the cooling component, which can measure the temperature of the glass edge; the cooling water source flows into the cooling component in contact with the glass through the flow control component, and the temperature difference measured by the two temperature measuring elements is fed back to the flow control component to realize automatic control of the flow of the cooling water source. The coordinated use of the temperature measuring element and the flow control component can accurately control the amount of cooling water used and the cooling rate of the glass edge, thereby obtaining good glass edge quality, thereby obtaining good cutting quality, and improving the stability and sustainability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a float glass edge cooling device provided in an embodiment of the present application;

[0026] Figure 2 A schematic structural diagram of a float glass edge cooling device provided in an embodiment of the present application;

[0027] Figure 3 A schematic structural diagram of a first hinge provided in an embodiment of the present application;

[0028] Figure 4 A schematic structural diagram of a second hinge provided in an embodiment of the present application;

[0029] The text annotations in the figure represent:

[0030] 1. First bracket; 11. Nut; 2. Second bracket; 21. Cylinder; 22. Rotating shaft; 23. Groove; 3. Flow control assembly; 4. Cooling assembly; 41. Water-absorbing soft board; 42. Arc-shaped guard plate; 43. Rotating ring; 5. Glass; 6. Roller; 7. Water tank; 8. Temperature measuring element; 9. Lifting drive assembly; 10. Third bracket; 12. T-joint assembly; 13. Fourth bracket; 14. Second hinge; 141. First connecting piece; 142. Second connecting piece; 143. Pin. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Example 1

[0034] As mentioned in the background technology, in order to solve the problems in the prior art, this application proposes a float glass edge cooling device for cooling the edge of the glass running along the roller. Figure 1 and Figure 2 As shown, including:

[0035] The first bracket 1 is arranged along the first direction, with its bottom end fixed to the frame on one side of the roller 6 and its top end higher than the surface of the glass 5;

[0036] A second bracket 2 with adjustable length and height arranged along a second direction, connected to the top end of the first bracket 1 and extending toward the glass 5;

[0037] A cooling component 4, one end of which is connected to the second bracket 2, and the other end of which is in contact with the edge of the glass 5;

[0038] A temperature measuring assembly, comprising two temperature measuring elements 8 distributed along the running direction of the roller, the two temperature measuring elements 8 being arranged on both sides of the cooling assembly 4, for measuring the temperature of the edge of the glass 5;

[0039] The cooling water source flows into the cooling component 4 through the flow control component 3, so that the glass 5 in contact with the cooling component 4 is cooled;

[0040] The flow control component 3 can automatically control the flow of the cooling water source through the temperature difference between the two temperature measuring elements 7 .

[0041] In which, the glass 5 is placed on the surface of the roller 6, and the movement of the glass 5 is achieved by the rolling of the roller 6. The length direction of the glass 5 is consistent with the running direction of the roller 6. The first direction is perpendicular to the running surface of the glass 5, and the second direction is parallel to the width direction of the running glass 5. One end of the second bracket 2 is connected to the first bracket 1, and the other end extends toward the center side of the glass 5.

[0042] Among them, preferably, the flow control component 3 is a flow meter, and the flow meter base is provided on the side close to the first bracket 1 for fixing the flow meter. The flow meter can control the flow rate of cooling water flowing through, and the temperature measuring element 8 is installed on the bracket fixed on the frame on both sides of the roller 6. The temperature measuring element 8 is a non-contact temperature sensor, and the temperature measuring element is fixed on the edge of the glass 5. The control system obtains the cooling rate by measuring the temperature difference between the two temperature measuring elements 8, the speed of the roller 6 and the fixed distance between the two temperature measuring elements 8. By comparing the cooling rate with the set cooling rate, the flow meter is controlled to make the flow meter operate.

[0043] By using the temperature measuring element 8 and the flow control component 3 in conjunction with each other, the amount of cooling water is accurately controlled, and the cooling rate of the edge of the glass 5 is accurately controlled, thereby obtaining good edge quality of the glass 5 and thus obtaining good cutting quality, thereby improving the stability and sustainability of production.

[0044] Further, if Figure 1 As shown, a water tank 7 is provided in parallel with the cooling water source pipeline, which is used to ensure that the cooling device continues to operate in the event of water supply anomalies; a temperature control component is provided on the water tank 7. Preferably, the water tank 7 is provided on the ground outside the production line, and a second valve 72 is provided on the water inlet side of the water tank 7, and a third valve 73 is provided on the water outlet side of the water tank 7. A first valve 71 is provided on the pipeline parallel to the water tank 7. Under normal circumstances, the second valve 72 and the third valve 73 are closed, and the first valve 71 is opened, so that the cooling water source flows through the first valve 71 and enters the flow control component 3. When the second valve 72 is opened and the first valve 71 and the third valve 73 are closed, the cooling water source flows into the water tank 7, so that the water tank 7 is filled with cooling water. When the cooling water supply is abnormal, the third valve 73 is opened, and the cooling water in the water tank 7 flows into the flow control component 3, so that the production line can continue to operate, thereby improving the production efficiency of the production line.

[0045] The temperature control component includes a heater and a temperature sensor provided on the water tank. The temperature of the cooling water source is set to 20°C-30°C on the control system. The temperature sensor transmits the acquired temperature signal to the control system and compares it with the temperature setting range. When the temperature is lower than the set temperature, the heater is controlled to turn on. When the temperature is within the temperature range or above, the heater is turned off, thereby realizing automatic control of the water tank temperature.

[0046] Further, if Figure 1As shown, the height of the second bracket 2 is adjusted by the lead screw of the first bracket 1, and the second bracket 2 is connected to the nut 11 of the lead screw. The first bracket 1 is the screw of the lead screw, and the first bracket 1 has an external thread. The bottom of the first bracket 1 is equipped with a motor that drives the screw to rotate. The motor drives the screw to rotate, and through the principle of the lead screw, the circular motion of the screw is converted into linear reciprocating motion of the nut 11, so that the nut 11 can drive the second bracket 2 to rise and fall. Adjusting the height of the second bracket 2 by the lead screw can adapt to different glass thicknesses, improving the applicability of the device.

[0047] Furthermore, if Figure 1 As shown, the length of the second bracket 2 is adjusted by a cylinder 21. One end of the cylinder 21 is connected to the nut 11, and the piston end of the cylinder 21 is connected to the second bracket 2. The setting direction of the cylinder 21 is the second direction. The cylinder 21 and the nut 11 of the first bracket 1 can be fixedly connected by bolts. The piston end of the cylinder 21 is connected to the second bracket 2. The piston of the cylinder 21 extends and retracts along the second direction. Preferably, the cylinder 21 has two air ports, which are connected to the two air ports by a two-position five-way solenoid valve. By controlling the on and off of the solenoid valve, the two air ports are alternately supplied with air, thereby realizing the reciprocating motion of the piston. In this embodiment, the width of the glass 5 ranges from 3060 mm to 3300 mm, and the distance between the edge of the glass 5 and the edge of the roller 6 fluctuates by an average of 180 mm to 200 mm. Therefore, in order to adapt to the glass 5 of different widths, the length of the second bracket 2 is adjustable to ensure that the cooling component 4 connected to the second bracket 2 can contact the edge of the glass 5, thereby improving the applicability of the device. In addition, a standard cylinder is used, which has a simple structure and is easy to operate.

[0048] Furthermore, if Figure 1 As shown, the cooling assembly 4 includes a curved guard plate 42 hingedly connected to the second bracket 2 via a first hinge, and a water-absorbing soft plate 41 fixed to the inner side of the curved guard plate 42 and in contact with the glass surface. Preferably, the curved guard plate 42 is concave inward, so that when cooling water flows into the water-absorbing soft plate 41, it will not overflow to the sides, thereby preventing the cooling water from flowing into the surface of the glass 5 that does not need to be cut. Preferably, the water-absorbing soft plate 41 is a soft, water-absorbing material. In this embodiment, a sponge is selected. The sponge is fixed to the inner side of the curved guard plate 42 by gluing or screwing. After the sponge absorbs the cooling water, it contacts the surface of the running glass 5 to achieve the purpose of cooling the edge of the glass 5. The water-absorbing soft plate 41 is easy to replace, has low cost, and is easy to maintain.

[0049] Furthermore, if Figure 3As shown, the second bracket 2 is provided with a groove 23, and the first hinge member is disposed within the groove 23. The hinge member includes a rotating shaft 22 fixed within the groove 23. The rotating shaft 22 is provided with a rotating ring 43, the outer wall of which is fixedly connected to the curved guard plate 42. Preferably, the second bracket 2 is a rectangular parallelepiped and has an end surface connected to the cooling assembly 4. The end surface is provided with a groove 23. The ends of the rotating shaft 22 within the groove 23 can be fixed to the inner wall of the groove 23 by screwing or welding. The rotating ring 43 is sleeved on the rotating shaft 22 and can rotate within a certain range within the groove 23. Therefore, when the height of the second bracket 2 changes or the thickness of the glass 5 changes, the rotating ring 43 can drive the cooling assembly 4 to change angle within a certain range, allowing the water-absorbing soft plate 41 fixed to the curved guard plate 42 to freely rest on the surface of the glass 5. This not only avoids the generation of large friction with the surface of the glass 5 due to angle problems, but also increases the contact area with the glass 5, achieving a better cooling effect.

[0050] Example 2

[0051] On the basis of Example 1, Figure 2 As shown, the number of the cooling components 4 is 2, which can be switched by a cooling replacement device, and the cooling replacement device includes:

[0052] A third bracket 10 is provided along the running direction of the roller 6, and both ends of the third bracket 10 are respectively connected to a cooling component 4 in contact with the surface of the glass 5;

[0053] A fourth bracket 13 arranged along the first direction has one end fixed to the second bracket 2 and the other end hinged to the middle of the third bracket 10 via a second hinge 14;

[0054] a lifting drive assembly 9, one end of which is fixed to the second bracket 2 and the other end of which is connected to one end of the third bracket 10, for driving the lifting assembly 4 connected to the third bracket 10 to move up and down along the first direction, so that the two lifting assemblies 4 alternately contact the surface of the glass 5;

[0055] The cooling water source flows into the three-way component 12 through the flow control component 3, and the cooling water source is divided into two branches by the three-way component 12, which flow into the two cooling components 4 provided at both ends of the third bracket 10 respectively.

[0056] Wherein, the fourth bracket 13 is perpendicular to the second bracket 2. Preferably, the fourth bracket 13 and the third bracket 10 are rectangular parallelepipeds, the bottom surface of the third bracket 10 has an end surface connected to the cooling component 4, and the two ends of the bottom surface of the third bracket 10 are respectively provided with grooves 23 along the second direction. The two cooling components 4 are connected to the third bracket 10 through the first hinge, so that the cooling component 4 can change the angle, so that the water-absorbing soft board 41 can be freely placed on the surface of the glass 5. The fourth bracket 13 is hinged to the middle part of the third bracket 10, so the third bracket 10 and the fourth bracket 13 are hinged. The four brackets 13 form a lever, so when one end of the third bracket 10 rises and the other end falls, the cooling components 4 at both ends of the third bracket 10 are alternately in contact with the surface of the glass 5; preferably, the three-way component 13 is a three-way valve that can automatically select the direction of liquid flow. When receiving a signal of which cooling component 4 is descending, the three-way valve opens the valve on the corresponding side, so that the cooling water flows to the descending cooling component 4; this design prevents the water-absorbing soft plate 41 from overheating after being in contact with the overheated surface of the glass 5 for a long time, thereby improving the cooling efficiency and the stability of the production line operation.

[0057] Further, if Figure 2 As shown, the lifting drive assembly 9 is an electric push rod. In this embodiment, the actuating end of the electric push rod is connected to the cooling assembly 4 on the left side of the third bracket 10. When the push rod is extended to a specified length, the cooling assembly 4 on the left side descends into position and contacts the surface of the glass 5. When the push rod is shortened to a specified length, the cooling assembly 4 on the left side ascends and the cooling assembly 4 on the right side descends into position and contacts the surface of the glass 5, achieving alternating operation of the two cooling assemblies. The electric push rod is compact, highly precise, and has a controllable extension and retraction speed, which improves the simplicity of the device while meeting the requirements.

[0058] Further, if Figure 4As shown, the second hinged member 14 includes a first connecting piece 141 and a second connecting piece 142. One end of the first connecting piece 141 is connected to the fourth bracket 13, and the other end is connected to one end of the second connecting piece 142 through a pin shaft 143. The other end of the second connecting piece 142 is connected to the third bracket 10. Preferably, the fourth bracket 13 is a rectangular parallelepiped, and the first connecting piece 141 is fixed to the bottom end of the side facing the first bracket 1. The first connecting piece 141 can be integrally formed with the fourth bracket 13, or the first connecting piece 141 can be fixed to the side of the fourth bracket 13 by bolts. The first connecting piece 141 is provided with a first through hole, and the second connecting piece 142 has the same structure as the first connecting piece 141 and has a second through hole. The first connecting piece 141 and the second connecting piece 142 are fixed by a pin shaft 143 through the first through hole and the second through hole. The second connecting piece 142 is fixed to the middle part of the third bracket 10, so the two ends of the third bracket 10 can only swing along the first direction with the pin shaft 143 as the fulcrum, and cannot move in the second direction, so that the two cooling components 4 at both ends of the third bracket 10 can only be lifted and lowered along the first direction.

[0059] Example 3

[0060] This embodiment provides a production line, including the above-mentioned float glass edge cooling device installed on both sides of the roller 6. Since both sides of the glass 5 need to be cooled, two sets of the float glass edge cooling device are installed, and the installation directions of the two sets of the device are approximately symmetrical with the center line of the longitudinal direction of the glass 5.

[0061] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A float glass edge cooling device for cooling the edge of glass running along a roller conveyor (6), characterized in that: include: A first bracket (1) arranged along a first direction, with its bottom end fixed to a frame on one side of the roller (6) and its top end higher than the surface of the glass (5); A second bracket (2) with adjustable length and height, arranged along a second direction, connected to the top end of the first bracket (1) and extending toward the glass (5); A cooling component (4), one end of which is connected to the second bracket (2) and the other end of which is in contact with the edge of the glass (5); A temperature measuring component, comprising two temperature measuring elements (8) distributed along the running direction of the roller (6), the two temperature measuring elements (8) being located on both sides of the cooling component (4) and used for measuring the temperature of the edge of the glass (5); A cooling water source flows into the cooling component (4) through a flow control component (3), thereby cooling the glass (5) in contact with the cooling component (4); The flow control component (3) can automatically control the flow of the cooling water source through the temperature difference between the two temperature measuring elements (8); the flow control component (3) is a flow meter, and the control system of the cooling device obtains a cooling rate by measuring the temperature difference between the two temperature measuring elements (8), the speed of the roller (6) and the fixed distance between the two temperature measuring elements (8), and controls the flow meter to operate by comparing the cooling rate with the set cooling rate; The cooling assembly (4) comprises a curved guard plate (42) hinged to the second bracket (2) via a first hinge, and a water-absorbing soft plate (41) fixed to the inner side of the curved guard plate (42) and in contact with the surface of the glass (5); The number of the cooling components (4) is 2, which can be switched for use by a cooling replacement device, and the cooling replacement device includes: a third bracket (10) arranged along the running direction of the roller (6), wherein both ends of the third bracket (10) are respectively connected to cooling components (4) capable of contacting the surface of the glass (5); a fourth bracket (13) arranged along the first direction, one end of which is fixed to the second bracket (2), and the other end of which is hinged to the middle part of the third bracket (10) via a second hinge (14); A lifting drive assembly (9), one end of which is fixed to the second bracket (2) and the other end of which is connected to one end of the third bracket (10), and is used to drive the cooling assembly (4) connected to the third bracket (10) to lift and lower along the first direction, so that the two cooling assemblies (4) alternately contact the surface of the glass (5); A three-way assembly (12), wherein the cooling water source flows into the three-way assembly (12) through the flow control assembly (3), and the cooling water source is controlled by the three-way assembly (12) to flow into the cooling assembly (4) in contact with the surface of the glass (5); This prevents the water-absorbing soft plate (41) from overheating after being in contact with the overheated surface of the glass (5) for a long time.

2. The float glass edge cooling device according to claim 1, characterized in that: A water storage tank (7) is provided in parallel with the cooling water source pipeline, which is used to enable the cooling device to continue to operate in the event of abnormal water supply; a temperature control component is provided on the water storage tank (7).

3. The float glass edge cooling device according to claim 1, characterized in that: The height of the second bracket (2) is adjusted by a screw provided on the first bracket (1), and the second bracket (2) is connected to a nut (11) of the screw.

4. The float glass edge cooling device according to claim 3, characterized in that: The length of the second bracket (2) is adjusted by a cylinder (21), one end of the cylinder (21) is connected to the nut (11), and the piston end of the cylinder (21) is connected to the second bracket (2).

5. The float glass edge cooling device according to claim 1, characterized in that: The second bracket (2) is provided with a groove (23), the first hinge is provided in the groove (23), and includes a rotating shaft (22) fixed in the groove (23), a rotating ring (43) is provided on the outer sleeve of the rotating shaft (22), and the outer wall of the rotating ring is fixedly connected to the arc-shaped guard plate (42).

6. The float glass edge cooling device according to claim 1, characterized in that: The lifting drive component (9) is an electric push rod.

7. The float glass edge cooling device according to claim 1, characterized in that: The second hinged member (14) comprises a first connecting piece (141) and a second connecting piece (142), wherein one end of the first connecting piece (141) is connected to the fourth bracket (13), and the other end is connected to one end of the second connecting piece (142) via a pin (143), and the other end of the second connecting piece (142) is connected to the middle of the third bracket (10).

8. A production line, characterized in that: The float glass edge cooling device according to any one of claims 1 to 7 is installed on both sides of the roller conveyor (6).

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