Hydraulic system applied to multi-layer laminating equipment

Abstract

The utility model discloses a hydraulic system applied to multi-layer laminating equipment, which relates to the technical field of multi-layer laminators and comprises a hydraulic cylinder group for the multi-layer laminators, and an oil inlet and an oil return port of the hydraulic cylinder group are respectively connected with an oil inlet pipeline synchronous motor and an oil return pipeline synchronous motor; the hydraulic station further comprises a hydraulic station frame body. The hydraulic control module comprises a motor, an oil pump and a hydraulic control valve group which are mounted on the hydraulic station frame body, and the motor and the oil pump are connected to realize power supply; the hydraulic control valve set comprises an electromagnetic relief valve, an electromagnetic reversing valve, a double-hydraulic-control one-way valve and a double-stacked throttling valve which are connected between the oil pump and the oil inlet pipeline synchronous motor and between the oil pump and the oil return pipeline synchronous motor. According to the utility model, stable pressure maintaining during cover closing of the multi-layer laminating machine is realized, the problems that a bottom plate and a heating plate are not horizontal and cannot be stopped at any position in the cover opening and closing process of an existing hydraulic system are solved, the laminating quality is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of multi-layer laminator technology, and more specifically to a hydraulic system applied to multi-layer laminator equipment. Background Technology

[0002] In the field of multilayer lamination equipment, the hydraulic system is a key component for ensuring the normal operation of the equipment. Existing hydraulic systems typically consist of a hydraulic power unit (power), hydraulic pipelines (transmission), hydraulic cylinders (actuators), and synchronous motors (actuators).

[0003] However, current hydraulic systems in the laminator industry are generally low-flow (below 100L / min) and low-pressure (≤8MPa) systems. This configuration is clearly insufficient when facing the requirements of multi-layer laminators. Normal operation of multi-layer laminators requires a system flow rate of over 140L / min and a pressure of 10-13MPa. Existing hydraulic systems cannot meet these high flow and high pressure demands, resulting in inefficient and unstable lamination operations and limiting the performance and application range of multi-layer laminators.

[0004] Furthermore, existing hydraulic systems also have some problems in structural design and functional implementation. For example, the oil tank cleaning and filter replacement of the hydraulic station are not convenient enough, and there is a lack of effective liquid level monitoring and alarm mechanisms, which can easily lead to system failure due to oil leaks and seepage. The configuration of valve groups and pipeline design are also not optimized enough, which cannot guarantee the stability of system operation and pressure holding performance. Problems such as the base plate and heating plate not being level during the opening and closing of the cover, and the inability to stop at any position when opening or closing the cover, are likely to occur, affecting the lamination quality and the service life of the equipment.

[0005] In summary, existing hydraulic systems cannot meet the high-performance requirements of multi-layer lamination equipment in terms of flow rate, pressure, structural design, and functional implementation. There is an urgent need for a new type of hydraulic system that can solve the above problems. Utility Model Content

[0006] In view of this, the present invention provides a hydraulic system for use in multi-layer lamination equipment, aiming to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hydraulic system for use in multi-layer laminating equipment includes a hydraulic cylinder assembly for the multi-layer laminating machine, wherein the inlet and outlet of the hydraulic cylinder assembly are respectively connected to an inlet synchronous motor and an outlet synchronous motor; and further includes:

[0009] Hydraulic station frame;

[0010] The hydraulic control module includes a motor, an oil pump, and a hydraulic control valve assembly mounted on the hydraulic station frame. The motor and the oil pump are connected to provide power. The hydraulic control valve assembly includes an electromagnetic relief valve, an electromagnetic directional valve, a dual-hydraulic-controlled check valve, and a dual-overlapping throttle valve connected between the oil pump and the synchronous motor in the oil inlet line and the synchronous motor in the oil return line. The dual-hydraulic-controlled check valve allows the oil to flow freely in one direction, while requiring pressure control to open in the opposite direction, thus enabling stable pressure maintenance when the multi-layer pressure cover is closed.

[0011] Through the above technical solution, this utility model achieves stable pressure maintenance when opening and closing multi-layer lamination covers by configuring a hydraulic control valve group (including an electromagnetic relief valve, an electromagnetic reversing valve, a dual hydraulic control check valve, and a dual superimposed throttle valve). It solves the problems of the base plate and heating plate not being level and the inability to stop at any position during the opening and closing of the cover in the existing hydraulic system, thereby improving the lamination quality and the service life of the equipment.

[0012] Preferably, in the aforementioned hydraulic system applied to a multi-layer lamination equipment, the hydraulic station frame has a stepped structure. The stepped structure of the hydraulic station frame effectively utilizes space, making the overall layout of the hydraulic system more compact and rational, facilitating installation and maintenance, while also improving the space utilization rate of the hydraulic station and reducing the equipment's footprint.

[0013] Preferably, in the aforementioned hydraulic system applied to a multi-layer lamination equipment, the oil pump's suction port is connected to an oil suction filter, and the return oil line of the solenoid directional valve is connected to an air cooler and a return oil filter. The oil pump's suction port being connected to the oil suction filter effectively filters impurities in the oil, ensuring the cleanliness of the oil entering the pump and reducing wear on the pump and hydraulic system caused by impurities. The solenoid directional valve's return oil line being connected to the air cooler and return oil filter cools and filters the return oil, preventing excessively high oil temperature and impurity accumulation, extending the service life of the hydraulic system, and improving the system's operational stability.

[0014] Preferably, in the aforementioned hydraulic system applied to a multi-layer lamination equipment, the hydraulic station frame is provided with an oil tank cleaning window for replacing the suction filter and the return filter elements. The oil tank cleaning window on the hydraulic station frame facilitates the replacement of the suction and return filter elements, and also facilitates cleaning of the oil tank, ensuring the cleanliness of the oil inside. This further improves the convenience and reliability of hydraulic system maintenance, and reduces maintenance costs and downtime.

[0015] Preferably, in the aforementioned hydraulic system applied to a multi-layer lamination equipment, a pressure gauge is also installed on the hydraulic control module, and the pressure gauge is located at the mounting location of the electromagnetic relief valve. The installation of a pressure gauge on the hydraulic control module, and its location at the mounting location of the electromagnetic relief valve, enables real-time monitoring of the hydraulic system's pressure. This allows operators to promptly understand the system's operating status, identify potential problems early, and avoid equipment failures due to abnormal pressure, thereby improving the system's safety and reliability.

[0016] Preferably, in the aforementioned hydraulic system applied to a multi-layer laminating equipment, both the inlet and return oil line synchronous motors are single-inlet, multi-outlet motors. This design allows for the synchronous movement of multiple actuators in the multi-layer laminating equipment, improving the synchronicity and efficiency of the hydraulic system. It also ensures coordinated movement of all laminating components during operations such as opening and closing the cover, further enhancing the lamination quality.

[0017] Preferably, in the aforementioned hydraulic system applied to a multi-layer lamination equipment, the hydraulic station frame is equipped with a level sensor. The level sensor on the hydraulic station frame can monitor the hydraulic oil level in real time. When oil leakage or seepage occurs in the hydraulic system, causing the level to drop, it can promptly issue an alarm signal, reminding operators to take measures to avoid equipment failure due to insufficient oil, thereby enhancing the safety and reliability of the hydraulic system and reducing safety hazards caused by hydraulic oil leakage.

[0018] Preferably, in the aforementioned hydraulic system applied to a multi-layer laminating equipment, the motor is a 22KW motor. Using a 22KW motor to power the hydraulic system meets the high flow and high pressure requirements of the multi-layer laminating equipment, ensuring sufficient power output so that the equipment can efficiently and stably complete the lamination operation, improving equipment performance and application range, and increasing production efficiency.

[0019] Preferably, in the aforementioned hydraulic system applied to a multi-layer laminator, the motor is connected to the oil pump via a pump body bracket, and the oil pump is a HY100 piston pump. The connection method and pump type selection ensure efficient power transmission. Simultaneously, the piston pump possesses high volumetric efficiency and pressure stability, enabling the opening and closing of the multi-layer laminator cover in a short time, thus improving the equipment's operating efficiency and response speed, and further enhancing the performance of the hydraulic system.

[0020] Preferably, in the aforementioned hydraulic system applied to a multi-layer lamination equipment, both the inlet synchronous motor and the return synchronous motor are connected to the hydraulic cylinder assembly via rigid pipelines. The rigid pipeline connection provides higher strength and stability compared to flexible hoses, reducing impact and vibration within the hydraulic system and extending pipeline lifespan. Furthermore, the double-layer rigid pipeline design ensures uninterrupted pipeline routing, improving the overall performance and reliability of the hydraulic system.

[0021] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a hydraulic system for multi-layer lamination equipment, which has the following beneficial effects:

[0022] 1. Improve system performance: By optimizing the hydraulic control valve group (such as dual hydraulic check valve, double stacked throttle valve, etc.) and adopting a high-power motor (22KW) and high-performance oil pump (HY100 plunger pump), the system can meet the high flow rate (above 140L / min) and high pressure (10-13Mpa) requirements of multi-layer lamination equipment, significantly improving the operating efficiency and lamination quality of the equipment.

[0023] 2. Enhanced System Stability and Pressure Holding Performance: The dual-hydraulic control check valve design allows for free unidirectional oil flow, while pressure control is required to open it during reverse flow, ensuring stable pressure holding when the multi-layer pressure cover is closed. This design solves the problems of the base plate and heating plate not being level during the opening and closing process of existing systems, as well as the inability to stop at any position, thus improving the stability and service life of the equipment.

[0024] 3. Optimized Structural Design: The hydraulic station frame adopts a stepped structure, effectively utilizing space and making the overall layout more compact and rational, reducing the equipment's footprint and facilitating installation and maintenance. Rigid piping connections and a double-layer layout design avoid pipe interference, reduce impacts within the hydraulic system, and improve pipe lifespan and system response frequency.

[0025] 4. Improved Maintenance Convenience: The hydraulic station frame is equipped with an oil tank cleaning window, facilitating the replacement of the suction and return oil filter elements and promoting oil tank cleaning, thus improving maintenance convenience and efficiency. The installation of a level sensor enables real-time monitoring of the hydraulic oil level, allowing for timely detection of leaks and seepage, preventing equipment failures due to insufficient oil levels, and further reducing maintenance costs and downtime.

[0026] 5. Enhanced System Safety and Reliability: The installation of pressure gauges enables real-time monitoring of hydraulic system pressure, helping operators to understand the system's operating status promptly, identify potential problems early, and avoid equipment failures caused by abnormal pressure. The installation of suction and return oil filters, along with the cooling function of the air cooler for the return oil, effectively ensures oil cleanliness and temperature control, reduces the impact of impurities on the system, and extends the service life of the hydraulic system.

[0027] 6. Expanding the application scope of the equipment: By addressing the shortcomings of existing hydraulic systems in terms of flow rate, pressure, structural design, and functional implementation, the hydraulic system of this utility model can meet the high-performance requirements of multi-layer lamination equipment, significantly improving the performance and application scope of the equipment, enabling it to adapt to more complex industrial scenarios. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 The attached figure is a structural schematic diagram of the hydraulic system provided by this utility model for use in multi-layer lamination equipment;

[0030] Figure 2 The attached figure is a hydraulic schematic diagram of the hydraulic system provided by this utility model for use in multi-layer lamination equipment.

[0031] in:

[0032] 1-Hydraulic cylinder assembly; 2-Inlet oil line synchronous motor; 3-Return oil line synchronous motor; 4-Hydraulic station frame; 5-Motor; 6-Oil pump; 7-Solenoid relief valve; 8-Solenoid directional valve; 9-Dual hydraulic control check valve; 10-Dual stacked throttle valve; 11-Suction filter; 12-Air cooler; 13-Return oil filter; 14-Oil tank cleaning window; 15-Pressure gauge; 16-Hydraulic control valve assembly. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] See appendix Figure 1 To be continued Figure 2 This utility model discloses a hydraulic system for multi-layer laminating equipment, including a hydraulic cylinder group 1 for a multi-layer laminating machine, wherein the oil inlet and oil return port of the hydraulic cylinder group 1 are respectively connected to an oil inlet synchronous motor 2 and an oil return synchronous motor 3; and further includes:

[0035] Hydraulic station frame 4;

[0036] The hydraulic control module includes a motor 5, an oil pump 6, and a hydraulic control valve assembly 17 mounted on the hydraulic station frame 4. The motor 5 and oil pump 6 are connected to provide power. The hydraulic control valve assembly 17 includes a solenoid relief valve 7, a solenoid directional valve 8, a double-hydraulic-controlled check valve 9, and a double-layered throttle valve 10, connected between the oil pump 6 and the synchronous motor 2 in the inlet line and the synchronous motor 3 in the return line. The double-hydraulic-controlled check valve 9 allows the oil to flow freely in one direction, while requiring pressure control to open in the opposite direction, thus ensuring stable pressure maintenance when the multi-layered pressure cover is closed. The double-hydraulic-controlled check valve and the double-layered throttle valve 10 ensure smooth system operation and allow the system to stop at any position when the cover is open or closed.

[0037] In this implementation, each valve body is used in conjunction with a D25 valve block. The valve block orifice diameter is determined according to the laminator parameters, and the design diameter is D25 to ensure flow rate and prevent pressure buildup that could lead to hydraulic system instability.

[0038] To further optimize the above technical solution, the hydraulic station frame 4 has a stepped structure, which makes effective use of space.

[0039] To further optimize the above technical solution, the oil pump 6 is connected to an oil suction filter 11 at its suction port, and the return oil pipeline of the solenoid directional valve 8 is connected to an air cooler 12 and a return oil filter 13.

[0040] To further optimize the above technical solution, the hydraulic station frame 4 is provided with an oil tank cleaning window 14 for replacing the filter elements of the suction filter 11 and the return filter 13.

[0041] To further optimize the above technical solution, a pressure gauge 15 is also installed on the hydraulic control module, and the pressure gauge 15 is located at the mounting position of the electromagnetic relief valve 7.

[0042] In this embodiment, both the inlet oil line synchronous motor 2 and the return oil line synchronous motor 3 are one-inlet, six-outlet motors.

[0043] To further optimize the above technical solution, the hydraulic station frame 4 is equipped with a liquid level sensor to monitor the liquid level. When there is oil leakage or seepage in the hydraulic system, a liquid level alarm will be triggered.

[0044] To further optimize the above technical solution, motor 5 is a 22KW motor.

[0045] To further optimize the above technical solution, the motor 5 is connected to the oil pump 6 through the pump body bracket. The oil pump 6 is a HY100 plunger pump, which can complete the opening and closing action of the multi-layer laminator cover with a stroke of 1m within 35 seconds.

[0046] To further optimize the above technical solution, both the inlet synchronous motor 2 and the return synchronous motor 3 are connected to the hydraulic cylinder group 1 via rigid pipes. The 19mm diameter rigid pipe connection, using a double-layer layout, ensures no interference during pipe routing. The rigid pipe connection also extends the service life of the hydraulic lines, reduces shocks within the hydraulic system, and improves the response frequency of the hydraulic system.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily 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 is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic system applied to a multi-layer laminating equipment, comprising a hydraulic cylinder group (1) for a multi-layer laminating machine, the oil inlet and oil return of the hydraulic cylinder group (1) are connected with an oil inlet pipeline synchronous motor (2) and an oil return pipeline synchronous motor (3) respectively; characterized in that, Also include: Hydraulic station frame body (4); Hydraulic control module, the hydraulic control module includes motor (5), oil pump (6) and hydraulic control valve group (16) installed on the hydraulic station frame body (4), the motor (5) and the oil pump (6) are connected to realize power supply;The hydraulic control valve group (16) includes electromagnetic overflow valve (7), electromagnetic reversing valve (8), double hydraulic control check valve (9) and double superposition throttle valve (10) connected between the oil pump (6) to the oil inlet pipeline synchronous motor (2) and the oil return pipeline synchronous motor (3), the double hydraulic control check valve (9) allows oil to flow freely in one direction, and in the opposite direction, it needs control pressure to open, so that the multi-layer laminating machine cover can realize stable pressure maintaining.

2. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The hydraulic station frame body (4) is a stepped structure.

3. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The oil suction port of the oil pump (6) is connected with an oil suction filter (11), and the oil return pipeline of the electromagnetic reversing valve (8) is connected with an air cooler (12) and an oil return filter (13).

4. The hydraulic system for use in a multi-layer lamination apparatus according to claim 3, wherein The hydraulic station frame body (4) is provided with an oil tank cleaning window (14) for replacing the filter element of the oil suction filter (11) and the oil return filter (13).

5. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The hydraulic control module is also provided with a pressure gauge (15), and the pressure gauge (15) is located at the installation position of the electromagnetic overflow valve (7).

6. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The oil inlet pipeline synchronous motor (2) and the oil return pipeline synchronous motor (3) are all one-in and multiple-out motors.

7. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The hydraulic station frame body (4) is provided with a liquid level sensor.

8. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The motor (5) is a 22KW motor.

9. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The motor (5) is connected with the oil pump (6) through a pump body support, and the oil pump (6) is a HY100 plunger pump.

10. The hydraulic system for use in a multi-layer lamination apparatus according to claim 1, wherein The oil inlet pipeline synchronous motor (2) and the oil return pipeline synchronous motor (3) are connected with the hydraulic cylinder group (1) through hard pipelines.

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