Edge roller and production line

Abstract

The utility model relates to an edge roller and a production line. The edge roller comprises an edge roller body, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first three-way valve, a second three-way valve and a third three-way valve. The edge roller main body comprises an inner pipe, an outer pipe and a temperature sensor arranged at a water outlet of the outer pipe; the first pipeline and the second pipeline are communicated with an external water source through a first three-way valve; the first pipeline and the third pipeline are communicated with the inner pipe through a third three-way valve; the second pipeline and the fourth pipeline are communicated with the outer pipe through a second three-way valve. According to the technical scheme, backwashing can be realized only by adjusting the conducting direction of the three-way valve, the edge roller does not need to be stopped, glass production is not affected, pipelines do not need to be disassembled and reinstalled, and manpower is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of glass manufacturing, and in particular to an edge drawing machine and a production line. Background Art

[0002] The edge drawing machine is a key equipment for forming float glass. The glass liquid flows into the tin bath and is formed into flat glass of different thicknesses by the action of the edge drawing machine. The front end of the edge drawing machine (edge ​​drawing wheel end) should be extended into the tin bath. The inlet and outlet of the circulating cooling water are both outside the tin bath. The circulating cooling water must return after it passes through the inner tube to the front end. The method currently used is a two-layer casing, namely the outer tube and the inner tube. The inner tube is used to separate the water going back and forth so that the water can return through the outer tube. The edge drawing machine circulating cooling water system mainly provides circulating cooling water for the tin bath edge drawing machine. Through circulating cooling and cooling, it takes away excessive heat to ensure the normal operation of the edge drawing machine. After long-term use, the circulating water contains calcium, which will produce calcium precipitates attached to the pipe wall, making the inner diameter of the pipe smaller, the water flow rate reduced, and the cooling effect of the circulating water on the edge drawing machine weakened, which will accelerate the deformation of the heated surface and even block the circulating cooling water pipe. The edge drawing machine cannot be effectively cooled, which will cause deformation and bending, which may lead to production accidents including tin wrapping and edge stripping. In order to clean the scale, it is necessary to stop the edge drawing machine, remove the external water pipe connecting the outer tube and the inner tube, and then connect the outer tube and the inner tube in reverse for backwashing. Since the cleaning requires stopping the edge drawing machine, it will affect the production of glass, and it is labor-intensive to remove the outer tube and the inner tube and then connect them in reverse. Utility Model Content

[0003] The main purpose of the utility model is to provide an edge drawing machine and a production line, aiming to solve the technical problems that the cleaning of the existing edge drawing machine affects glass production and consumes manpower.

[0004] To achieve the above-mentioned purpose, in a first aspect, the utility model provides a side edge machine, the side edge machine comprising: a side edge machine body, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first three-way valve, a second three-way valve and a third three-way valve;

[0005] The edge drawing machine body comprises an inner tube, an outer tube and a temperature sensor arranged at the water outlet of the outer tube;

[0006] The first pipeline and the second pipeline are both connected to an external water source through the first three-way valve;

[0007] The first pipeline and the third pipeline are both connected to the inner pipe through the third three-way valve;

[0008] The second pipeline and the fourth pipeline are both connected to the outer pipe through the second three-way valve.

[0009] Optionally, the second pipeline is further provided with a booster pump.

[0010] Optionally, the second pipeline is also provided with a drug adding device.

[0011] Optionally, the edge-pulling machine further includes a water tank, and both the first pipeline and the second pipeline are connected to the water tank via the first three-way valve, and the water tank is also connected to the external water source.

[0012] Optionally, the other end of the third pipeline is connected to the water tank.

[0013] Optionally, the third pipeline is also provided with a filtering device.

[0014] Optionally, the other end of the fourth pipeline is connected to the water tank.

[0015] Optionally, the fourth pipeline is also provided with a heat exchange device.

[0016] Optionally, a pressure sensor is also provided at the water outlet of the outer tube.

[0017] Optionally, in a second aspect, the utility model further proposes a production line, which includes the aforementioned edge drawing machine.

[0018] The edge drawing machine proposed in the utility model comprises: an edge drawing machine body, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first three-way valve, a second three-way valve, and a third three-way valve; the edge drawing machine body comprises an inner tube, an outer tube, and a temperature sensor arranged at the water outlet of the outer tube; the first pipeline and the second pipeline are both connected to an external water source through the first three-way valve; the first pipeline and the third pipeline are both connected to the inner tube through the third three-way valve; the second pipeline and the fourth pipeline are both connected to the outer tube through the second three-way valve. When working normally, the first three-way valve connects the external water source and the first pipeline, and cuts off the connection between the external water source and the second pipeline; the second three-way valve connects the fourth pipeline and the outer tube, and cuts off the connection between the second pipeline and the outer tube; the third three-way valve connects the first pipeline and the inner tube, and cuts off the connection between the third pipeline and the inner tube. At this time, the external water source enters the inner tube through the first pipeline, reaches the edge drawing machine head position, is cooled, and then flows into the fourth pipeline through the outer tube. When the temperature sensor detects that the temperature of the outlet of the water pipe is abnormal, it means that the scale in the pipeline is serious and the circulating cooling effect is poor. The pipeline of the edge drawing machine needs to be descaled. It is only necessary to adjust the first three-way valve to connect the external water source and the second pipeline, cut off the connection between the first pipeline and the external water source, adjust the second three-way valve to connect the second pipeline with the outer pipe, cut off the connection between the fourth pipeline and the outer pipe, adjust the third three-way valve to connect the third pipeline with the inner pipe, cut off the connection between the first pipeline and the inner pipe, and then the external water source passes through the second pipeline to the outer pipe, flush the scale on the outer pipe, and then flow out through the inner pipe and the third pipeline. Therefore, during the backwashing process, the edge drawing machine does not need to be shut down, which will not affect the glass production, and only the three-way valve needs to be adjusted, and the pipeline does not need to be removed, which greatly reduces manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A schematic structural diagram of an edge drawing machine provided in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 1. First pipeline; 2. Second pipeline; 21. Booster pump; 22. Dosing device; 3. Third pipeline; 31. Filter device; 4. Fourth pipeline; 41. Heat exchange device; 5. Edge drawing machine body; 51. Inner tube; 52. Outer tube; 53. Temperature sensor; 6. First three-way valve; 7. Second three-way valve; 8. Fourth three-way valve; 9. Water tank. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0028] Reference Figure 1As shown, the utility model proposes a side edge machine, which includes: a side edge machine body 5, a first pipeline 1, a second pipeline 2, a third pipeline 3, a fourth pipeline 4, a first three-way valve 6, a second three-way valve 7 and a third three-way valve 8; the side edge machine body 5 includes an inner tube 51, an outer tube 52 and a temperature sensor 53 arranged at the water outlet of the outer tube 52; the first pipeline 1 and the second pipeline 2 are both connected to an external water source through the first three-way valve 6; the first pipeline 1 and the third pipeline 4 are both connected to the inner tube 51 through the third three-way valve 8; the second pipeline 2 and the fourth pipeline 4 are both connected to the outer tube 52 through the second three-way valve 8.

[0029] When working normally, the first three-way valve 6 connects the external water source and the first pipeline 1, and cuts off the connection between the external water source and the second pipeline 2; the second three-way valve 7 connects the fourth pipeline 4 and the outer tube 52, and cuts off the connection between the second pipeline 2 and the outer tube 52; the third three-way valve 8 connects the first pipeline 1 and the inner tube 51, and cuts off the connection between the third pipeline 3 and the inner tube 51. At this time, the external water source enters the inner tube 51 through the first pipeline 1, reaches the edge drawing machine head position, is cooled, and then flows into the fourth pipeline 4 through the outer tube 52. When the temperature sensor 53 detects that the temperature of the outlet of the water pipe is abnormal, it means that the scale in the pipeline is serious and the circulating cooling effect is poor. It is necessary to descale the pipeline of the edge drawing machine. It is only necessary to adjust the first three-way valve 6 to conduct the external water source and the second pipeline 2, cut off the connection between the first pipeline 1 and the external water source, adjust the second three-way valve 7 to conduct the second pipeline 2 and the outer pipe 52, cut off the connection between the fourth pipeline 4 and the outer pipe 52, adjust the third three-way valve 8 to conduct the third pipeline 3 and the inner pipe 51, and cut off the connection between the first pipeline 1 and the inner pipe 51. At this time, the external water source passes through the second pipeline 2 to the outer pipe 52, flushes the scale of the outer pipe 52, and then flows out through the inner pipe 51 and the third pipeline 3. Therefore, during the backwashing process, the edge drawing machine does not need to be shut down, which will not affect the glass production, and only needs to adjust the conduction direction of the three-way valve, and does not need to remove the pipeline, which greatly reduces manpower.

[0030] Furthermore, the first three-way valve 6, the second three-way valve 7 and the third three-way valve 8 can be electronic valves, so that when switching between the backwashing working mode and the normal cooling working mode, there is no need to manually adjust the conduction direction, and the conduction direction can be adjusted automatically.

[0031] In one embodiment, a booster pump 21 is further provided on the second pipeline 2. When backwashing is performed, the booster pump 21 is turned on to increase the water flow velocity and water flow pressure entering the outer tube 52, thereby increasing the impact force on scaling, thereby increasing the scaling cleaning effect.

[0032] In one embodiment, the second pipeline 2 is further provided with a dosing device 22. When backwashing is performed, the dosing device 22 is opened and a descaling agent is added to corrode and loosen the scale in the outer tube 52, which is beneficial to cleaning the scale.

[0033] In one embodiment, the edge drawing machine further includes a water tank 9. The first pipeline 1 and the second pipeline 2 are both connected to the water tank 9 through the first three-way valve 6. The water tank 9 is also connected to an external water source. By storing a certain amount of water in the water tank 9, the water stored in the water tank 9 can be temporarily used when the water supply is cut off, thereby reducing the downtime of the edge drawing machine.

[0034] Furthermore, the third pipeline 3 is also provided with a filtering device 31, and the other end of the third pipeline 3 is also connected to the water tank 9. When backwashing is performed, the water coming out of the inner tube 51 contains scale. After passing through the filtering device 31 on the third pipeline 3, the scale in the water will be filtered out, and the filtered water will return to the water tank 9 for reuse.

[0035] Furthermore, the other end of the fourth pipeline 4 is connected to the water tank 9, and the fourth pipeline 4 is also provided with a heat exchange device 41. During normal cooling operation, the high-temperature water from the outer pipe 52 flows through the heat exchange device 41 on the fourth pipeline 4, and the water temperature is reduced by heat exchange, and the low-temperature water returns to the water tank 9, which can be reused later.

[0036] Furthermore, a pressure sensor (not shown) is provided at the water outlet of the outer tube 52. By monitoring the water pressure at the water outlet through the pressure sensor and the water temperature at the water outlet through the temperature sensor 53, the scaling condition of the outer tube 52 can be more accurately judged, thereby more accurately judging whether backwashing is needed.

[0037] The present application also proposes a production line for preparing electronic glass, wherein the production line includes an edge drawing machine as in the above embodiment.

[0038] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0040] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A side edge machine, characterized in that: The edge drawing machine comprises an edge drawing machine body, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first three-way valve, a second three-way valve, and a third three-way valve; The edge drawing machine body comprises an inner tube, an outer tube and a temperature sensor arranged at the water outlet of the outer tube; The first pipeline and the second pipeline are both connected to an external water source through the first three-way valve; The first pipeline and the third pipeline are both connected to the inner pipe through the third three-way valve; The second pipeline and the fourth pipeline are both connected to the outer pipe through the second three-way valve.

2. The edge drawing machine according to claim 1, characterized in that: The second pipeline is also provided with a booster pump.

3. The edge stretching machine according to claim 1, characterized in that: The second pipeline is also provided with a drug adding device.

4. The edge stretching machine according to claim 1, characterized in that: The edge-pulling machine also includes a water tank. Both the first pipeline and the second pipeline are connected to the water tank through the first three-way valve. The water tank is also connected to the external water source.

5. The edge stretching machine according to claim 4, characterized in that: The other end of the third pipeline is communicated with the water tank.

6. The edge stretching machine according to claim 5, characterized in that: The third pipeline is also provided with a filtering device.

7. The edge stretching machine according to claim 4, characterized in that: The other end of the fourth pipeline is communicated with the water tank.

8. The edge stretching machine according to claim 7, characterized in that: The fourth pipeline is also provided with a heat exchange device.

9. The edge drawing machine according to any one of claims 1 to 8, characterized in that: A pressure sensor is also provided at the water outlet of the outer tube.

10. A production line, characterized in that: It comprises the edge drawing machine as claimed in any one of claims 1 to 9.

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