Vacuum control system

Abstract

The utility model relates to the technical field of vacuum control systems, in particular to a vacuum control system. The vacuum control system comprises a vacuum generator system and a vacuum pressure adjusting system, the vacuum generator system is connected to the vacuum pressure adjusting system and used for establishing vacuum for the suction cup and releasing vacuum. The vacuum pressure adjusting system comprises a vacuum establishing pressure adjusting system and a vacuum releasing pressure adjusting system and is used for adjusting the vacuum establishing pressure and the vacuum releasing pressure of the suction cup; the vacuum building pressure adjusting system comprises a first one-way valve, a second one-way valve and a first pressure adjusting module. The vacuum release pressure adjusting system comprises a third one-way valve, a fourth one-way valve and a second pressure adjusting module. The device is applied to the actual production of cover plate glass, the system is stable, the operation is simple, the failure rate is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum control systems, and particularly relates to a vacuum control system. Background Art

[0002] In recent years, with the progress of technology, a large number of high-precision automated devices have appeared in various industrial production sites. Due to characteristics such as fast production rhythm and few personnel in automated production lines, a large amount of work is completed by equipment instead of manual labor. Therefore, suction cups are widely used in industrial production to assist in product handling, positioning, etc.

[0003] In actual industrial production, due to high product quality requirements, difficult handling, fast production rhythm, etc., personnel are needed to engage in auxiliary operations such as operation. A large number of suction cups are used in the handling, processing, etc. of cover glass. The suction cup work not only requires a stable vacuum supply, but also a faster vacuum establishment speed, and at the same time requires the entire vacuum system to work stably. In the prior art, the vacuum system used to supply vacuum for the suction cup work mainly includes a pressure regulating device and a vacuum generator. This vacuum system only adjusts the air supply pressure of the vacuum generator through the pressure regulating device to achieve the effect of adjusting the vacuum pressure at the suction cup position. However, in actual use, the adjustment method of the above vacuum system has certain disadvantages. One is that the vacuum generator itself needs to be within a certain working pressure range, and exceeding this range will cause its work to be unstable; the other is that this system cannot adjust the vacuum pressure and release pressure of the suction cup separately, which in turn results in low work efficiency. Therefore, when the vacuum system in the prior art is used for a long time, it cannot provide continuous, efficient and stable operation. Summary of the Invention

[0004] The purpose of the utility model is to provide a vacuum control system to solve the problem that the vacuum control system in the prior art cannot operate efficiently and stably for a long time when applied to the suction cup work.

[0005] To solve the above problems, the technical solution of a vacuum control system of the utility model is:

[0006] A vacuum control system, comprising: a vacuum generator system and a vacuum pressure adjustment system;

[0007] The vacuum generator system is connected to the vacuum pressure adjustment system and is used to establish vacuum and release vacuum for the suction cup;

[0008] The vacuum pressure adjustment system includes a vacuum establishment pressure adjustment system and a vacuum release pressure adjustment system, and is used to adjust the pressure for establishing vacuum and the pressure for releasing vacuum of the suction cup;

[0009] The vacuum establishment pressure adjustment system includes a first one-way valve, a second one-way valve, and a first pressure regulation module. The first one-way valve is connected to the vacuum generator system and connected to the first pressure regulation module. The first pressure regulation module is connected to the second one-way valve, and the second one-way valve is connected to the suction cup.

[0010] The vacuum release pressure adjustment system includes a third one-way valve, a fourth one-way valve, and a second pressure regulation module. The third one-way valve is connected to the vacuum generator system and connected to the second pressure regulation module. The second pressure regulation module is connected to the fourth one-way valve, and the fourth one-way valve is connected to the suction cup.

[0011] Further, the vacuum control system further includes a third pressure regulation module, which is connected to the vacuum generator system and is used to adjust the gas pressure supplied to the vacuum generator system.

[0012] Further, the vacuum generator system includes a vacuum generation module. The vacuum generator system includes a vacuum generator module, and the vacuum generator module includes:

[0013] A vacuum establishment module for establishing a vacuum for the suction cup;

[0014] A vacuum release module for releasing the vacuum for the suction cup.

[0015] Further, the vacuum establishment module includes a gas supply valve and an exhaust port. The gas supply valve is connected to the exhaust port, and the exhaust port is connected to the vacuum establishment pressure adjustment system.

[0016] Further, the vacuum release module includes a destruction valve and a throttle valve. The destruction valve is connected to the throttle valve, and the throttle valve is connected to the vacuum release pressure adjustment system.

[0017] Further, the vacuum establishment module further includes a first filter for filtering gas impurities.

[0018] Further, the number of the vacuum generator modules is two. One vacuum generator module is a common vacuum generator module, and the other is a standby vacuum generator module.

[0019] Further, the vacuum control system further includes a switching module. The switching module is connected to the common vacuum generator module and the standby vacuum generator module and connected to the vacuum pressure adjustment system for switching the use of the common vacuum generator module and the standby vacuum generator module.

[0020] Further, the vacuum control system further includes a pressure switch, which is connected to the vacuum pressure adjustment system for displaying the current pressure in the pipeline and pressure alarm.

[0021] Further, the vacuum control system further includes a second filter, which is connected to the pressure switch and to the suction cup, and is used to filter the gas entering the system through the suction cup.

[0022] Compared with the prior art, the utility model has the following beneficial effects: A vacuum control system of the utility model adjusts the pressure for establishing vacuum of the suction cup through setting a vacuum pressure adjustment system in the system, which includes a vacuum establishment pressure adjustment system and a vacuum release pressure adjustment system. The vacuum establishment pressure adjustment system adjusts the pressure for establishing vacuum of the suction cup, and the vacuum release pressure adjustment system adjusts the pressure for releasing vacuum of the suction cup. Further, in the actual use process, on the basis of the pressure adjustment of the vacuum generator, the pressure of the system is further adjusted according to whether the pressure required by the suction cup during work is too large or too small, so as to ensure the continuous and stable operation of the system; at the same time, the vacuum pressure and the release pressure of the suction cup are adjusted separately, so as to improve its low work efficiency and ensure that the vacuum control system can operate stably and efficiently for a long time when applied to the work of the suction cup. The utility model is applied to the actual production of cover glass, with a stable system, simple operation, reduced failure rate and improved production efficiency. This system has been applied to actual production, and the verified effect is good, which improves the overall working stability of the equipment and provides a reliable guarantee for long-term stable production.

[0023] By setting a first one-way valve, a second one-way valve and a first pressure regulating module in the vacuum establishment pressure adjustment system, and a third one-way valve, a fourth one-way valve and a second pressure regulating module in the vacuum release pressure adjustment system, the pressure for establishing vacuum and releasing vacuum of the suction cup is adjusted simply and effectively.

[0024] A third pressure regulating module is set in the vacuum control system to adjust the gas pressure supplied to the vacuum generator system. The pressure adjustment range must be based on the design parameters of the vacuum generator, so as to effectively prevent the working instability or system damage caused by the supply gas pressure exceeding the pressure parameter setting range of the vacuum generator system.

[0025] The vacuum generator module includes a vacuum establishment module and a vacuum release module. The vacuum establishment module includes a gas supply valve, an exhaust port and a first filter, and the first filter filters gas impurities to prevent the impurities in the gas from damaging the vacuum generator system.

[0026] The number of vacuum generator modules is two. One of the vacuum generator modules is a common vacuum generator module, and the other is a standby vacuum generator module. They are two identical systems and are used as spares for each other. When the current system fails, the standby system can be quickly put into use, improving the reliability of the equipment and reducing the impact on production.

[0027] The control system further includes a pressure switch, which is connected to the vacuum pressure adjustment system and is used to display the pressure in the current pipeline and give a pressure alarm.

[0028] The control system further includes a second filter, which is connected to the pressure switch and is used to filter the gas entering the system through the suction cup, so as to reduce the damage caused by impurities in the gas to the components in the system. Brief Description of the Drawings

[0029] Figure 1 It is a schematic diagram of a vacuum control system according to an embodiment of the present application;

[0030] In the figure: 1 - Compressed air interface, 2 - Third pressure regulating module, 3 - Vacuum generator system, 31 - Common vacuum generator module, 32 - Spare vacuum generator module, 311 - Air supply valve, 312 - Break valve, 313 - Throttle valve, 314 - First filter, 315 - Exhaust port, 4 - Switching valve, 5 - Vacuum establishment pressure adjustment system, 51 - First one-way valve, 52 - First pressure regulating module, 53 - Second one-way valve, 6 - Vacuum release pressure adjustment system, 61 - Third one-way valve, 62 - Second pressure regulating module, 63 - Fourth one-way valve, 7 - Pressure switch, 8 - Second filter, 9 - Suction cup. Detailed Embodiments

[0031] As cited in the background art, in the prior art, the vacuum control system cannot operate stably and efficiently for a long time during the operation of the suction cup. Therefore, the present invention provides a vacuum control system, which includes a vacuum generator system and a vacuum pressure adjustment system. The vacuum generator system is used to establish and release vacuum for the suction cup; the vacuum generator system includes a vacuum establishment pressure adjustment system and a vacuum release pressure adjustment system. At this time, the vacuum control system forms two paths. One is that the vacuum generator system establishes vacuum for the suction cup, and a vacuum establishment pressure adjustment system is correspondingly connected to adjust the pressure for establishing vacuum for the suction cup; the other is that the vacuum generator system releases vacuum for the suction cup, and a vacuum release pressure adjustment system is correspondingly connected to adjust the pressure for releasing vacuum for the suction cup. Furthermore, during actual use, on the basis of the pressure adjustment of the vacuum generator, the pressure of the system is further adjusted according to whether the pressure required for the operation of the suction cup is too high or too low, so as to ensure the continuous and stable operation of the system; at the same time, the vacuum pressure and release pressure of the suction cup are adjusted separately to improve its low working efficiency and ensure that the vacuum control system can operate stably and efficiently for a long time during the operation of the suction cup. The present invention is applied to the actual production of cover glass, with a stable system, simple operation, reduced failure rate, and improved production efficiency. This system has been applied to actual production, and the verified effect is good, improving the overall working stability of the equipment and providing a reliable guarantee for long-term stable production.

[0032] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] The following will be combined with Figure 1 to detail the vacuum control system provided in this application. Figure 1 It is a schematic structural diagram of the vacuum control system according to an embodiment of this application.

[0034] The present utility model provides a vacuum control system as Figure 1 shown: It includes a vacuum generator system 3 and a vacuum pressure adjustment system. The vacuum control system further includes a compressed air interface 1 for introducing compressed air, and the end of the vacuum pressure adjustment system is connected to a suction cup 9. During use, the vacuum control system is placed on and fixed to a robotic arm, the compressed air is led to the compressed air interface 1, and the suction cup 9 is installed at the corresponding position of the fixture, which directly contacts the product and is used for handling the product. Among them, the vacuum pressure adjustment system includes a vacuum establishment pressure adjustment system 5 and a vacuum release pressure adjustment system 6. The vacuum establishment pressure adjustment system 5 includes a first pressure adjustment module 52, a first one-way valve 51, and a second one-way valve 53. The first one-way valve 51 is connected to the vacuum generator system 3 and connected to the first pressure adjustment module 52, and the first pressure adjustment module 52 is connected to the second one-way valve 53; the vacuum release pressure adjustment system 6 includes a second pressure adjustment module 62, a third one-way valve 61, and a fourth one-way valve 63. The third one-way valve 61 is connected to the vacuum generator system 3 and connected to the second pressure adjustment module 62, and the second pressure adjustment module 62 is connected to the fourth one-way valve 63.

[0035] During use, the vacuum generator system 3 creates and releases vacuum for the suction cup 9 as needed. When creating vacuum, the first pressure adjustment module 52 in the vacuum establishment pressure adjustment system 5 adjusts the pressure for creating vacuum for the suction cup 9. At this time, the first one-way valve 51 and the second one-way valve 53 control the single direction of the air flow in this channel, that is, from the suction cup 9 to the vacuum generator system 3, and the first pressure adjustment module 52 adjusts the positive pressure of the air flowing through the pipeline. When releasing vacuum, the second pressure adjustment module 62 in the vacuum release pressure adjustment system 6 adjusts the pressure for releasing vacuum for the suction cup 9. At this time, the third one-way valve 61 and the fourth one-way valve 63 control the single direction of the air flow in this channel, that is, from the vacuum generator system 3 to the suction cup 9, and the second pressure adjustment module 62 adjusts the negative pressure of the air flowing through the pipeline to meet the production requirements.

[0036] Further, the vacuum control system further includes a third pressure regulating module 2, which is connected to the vacuum generator system 3 and is located at the front end of the entire system. It is used to adjust the gas pressure supplied to the vacuum generator system 3, and the pressure adjustment range shall be based on the design parameters of the vacuum generator.

[0037] In a specific embodiment of the present application, the vacuum generator system 3 includes a vacuum generator module, and the vacuum generator module includes: a vacuum establishment module for establishing a vacuum for the suction cup 9; a vacuum release module for releasing the vacuum for the suction cup 9. The vacuum establishment module includes a gas supply valve 311 and an exhaust port 315. The gas supply valve 311 is connected to the exhaust port 315, the exhaust port 315 is connected to the first filter 314, and the first filter 314 is connected to the vacuum establishment pressure adjustment system 5; the vacuum release module includes a destruction valve 312 and a throttle valve 313. The destruction valve 312 is connected to the throttle valve 313, and the throttle valve 313 is connected to the vacuum release pressure adjustment system 6. During use, the gas supply valve 311 is opened, the destruction valve 312 is closed, and a vacuum is generated. The first filter 314 filters the gas impurities in the air flow flowing from the suction cup 9 to the vacuum generator system 3 to prevent damage to the vacuum generator system 3. The exhaust port 315 is the gas discharge channel in the system and is opened or closed according to the working conditions; the destruction valve 312 is opened, the gas supply valve 311 is closed, and the vacuum is released; wherein the throttle valve 313 is used to adjust the gas flow rate for releasing the vacuum.

[0038] In another embodiment of the present application, the number of vacuum generator modules is two. One vacuum generator module is a common vacuum generator module 31, and the other is a standby vacuum generator module 32. The vacuum control system further includes a switching module, which is connected to the common vacuum generator module 31 and the standby vacuum generator module 32 and is connected to the vacuum pressure adjustment system. The switching module has two working positions and is controlled by a control program according to needs. Its function is to cooperate with the vacuum generator system 3 to perform the common and standby switching of the gas circuit system according to actual needs, that is, to switch the use of the common vacuum generator module 31 and the standby vacuum generator module 32. Among them, the switching module is a switching valve 4. The above two sets of identical systems can be used as spares for each other. When the current system fails, the standby system can be quickly put into use, improving the reliability of the equipment and reducing the impact on production.

[0039] Further, the control system further includes a pressure switch 7, which is connected to the vacuum pressure adjustment system and has multiple functions such as displaying the pressure in the current pipeline and pressure alarm. The control system further includes a second filter 8, which is connected to the pressure switch 7 and is connected to the suction cup 9. Its function is to filter the gas entering the system through the suction cup 9 to reduce the damage caused by impurities in the gas to the components in the system.

[0040] The specific use process of the system of the present utility model is as follows:

[0041] Vacuum establishment: Compressed gas enters through the compressed air interface 1, is regulated by the third pressure regulating module 2, the supply valve 311 is opened, the destruction valve 312 is closed, the compressed air is discharged from the exhaust port 315 through the supply valve 311, a vacuum is generated in the pipeline connecting the switching valve 4, and the passage between the first check valve 51, the first pressure regulating module 52, the second check valve 53, the pressure switch 7 and the suction cup 9 is opened. The suction cup 9 establishes a vacuum. According to production needs, the first pressure regulating module 52 adjusts the vacuum establishment pressure of the pipeline. At this time, the first check valve 51 and the second check valve 53 control the single flow direction of the air flow in this channel, that is, from the suction cup 9 to the vacuum generator system 3. The air flow passes through the second filter 8 and the first filter 314 to filter impurities in the air flow.

[0042] Vacuum release: Compressed gas enters through the compressed air interface 1, is regulated by the third pressure regulating module 2, the destruction valve 312 is opened, the supply valve 311 is closed, the compressed air passes through the destruction valve 312, the throttle valve 313, the switching valve 4, and through the third check valve 61, the second pressure regulating module 62 and the fourth check valve 63, the passage between the pressure switch 7 and the suction cup 9 is opened, and the suction cup 9 establishes a release. According to production needs, the second pressure regulating module 62 adjusts the vacuum release pressure of the pipeline. At this time, the third check valve 61 and the fourth check valve 63 control the single flow direction of the air flow in this channel, that is, from the vacuum generator system 3 to the suction cup 9.

[0043] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should, by the same token, be included in the protection scope of the present invention.

Claims

1. A vacuum control system, characterized in that, Comprising: A vacuum generator system and a vacuum pressure adjustment system; The vacuum generator system is connected to the vacuum pressure adjustment system for creating and releasing vacuum for the suction cup; The vacuum pressure adjustment system includes a vacuum creation pressure adjustment system and a vacuum release pressure adjustment system for adjusting the pressure for creating and releasing vacuum for the suction cup; The vacuum creation pressure adjustment system includes a first one-way valve, a second one-way valve, and a first pressure regulation module. The first one-way valve is connected to the vacuum generator system and connected to the first pressure regulation module. The first pressure regulation module is connected to the second one-way valve, and the second one-way valve is connected to the suction cup; The vacuum release pressure adjustment system includes a third one-way valve, a fourth one-way valve, and a second pressure regulation module. The third one-way valve is connected to the vacuum generator system and connected to the second pressure regulation module. The second pressure regulation module is connected to the fourth one-way valve, and the fourth one-way valve is connected to the suction cup.

2. The vacuum control system according to claim 1, characterized in that, The vacuum control system further includes a third pressure regulation module connected to the vacuum generator system for adjusting the gas pressure supplied to the vacuum generator system.

3. The vacuum control system according to claim 1, characterized in that, The vacuum generator system includes a vacuum generator module, and the vacuum generator module includes: A vacuum creation module for creating vacuum for the suction cup; A vacuum release module for releasing vacuum for the suction cup.

4. The vacuum control system according to claim 3, wherein The vacuum creation module includes a gas supply valve and an exhaust port. The gas supply valve is connected to the exhaust port, and the exhaust port is connected to the vacuum creation pressure adjustment system.

5. The vacuum control system according to claim 3, characterized in that, The vacuum release module includes a destruction valve and a throttle valve. The destruction valve is connected to the throttle valve, and the throttle valve is connected to the vacuum release pressure adjustment system.

6. The vacuum control system according to claim 4, characterized in that, The vacuum creation module further includes a first filter for filtering gas impurities.

7. The vacuum control system according to claim 3, characterized in that, The number of the vacuum generator modules is two, one of which is a common vacuum generator module and the other is a standby vacuum generator module.

8. The vacuum control system according to claim 7, wherein The vacuum control system further includes a switching module. The switching module is connected to the common vacuum generator module and the standby vacuum generator module and connected to the vacuum pressure adjustment system for switching the use of the common vacuum generator module and the standby vacuum generator module.

9. The vacuum control system according to any one of claims 1-8, characterized in that, The vacuum control system further includes a pressure switch connected to the vacuum pressure adjustment system for displaying the current pressure in the pipeline and pressure alarm.

10. The vacuum control system according to claim 9, characterized in that, The vacuum control system further includes a second filter connected to the pressure switch and connected to the suction cup for filtering the gas entering the system through the suction cup.

Images