Stable integrated pneumatic control module and pneumatic device with same

Abstract

The utility model relates to a stable integrated pneumatic control module and a pneumatic device with the module. The stable integrated pneumatic control module comprises an integrated base, and an air channel set is formed in the integrated base; the device further comprises a control circuit board, a first electromagnetic valve and a second electromagnetic valve. External compressed air enters the pneumatic control module through an air inlet of the first electromagnetic valve, an air outlet of the first electromagnetic valve is communicated with the air channel set, and an air inlet and an air outlet of the second electromagnetic valve are both communicated with the air channel set. Two air cylinder communicating holes communicating with an external air cylinder are formed in the surface of the integrated base. The first electromagnetic valve is used for controlling the amount of the inlet compressed air, and the second electromagnetic valve is used for controlling the movement direction of a piston rod of an external air cylinder. By arranging the control circuit board, the first electromagnetic valve and the second electromagnetic valve, the air inflow of compressed air can be accurately controlled in real time according to the movement direction of the piston rod, so that the stress on the two sides of the piston of the air cylinder is balanced no matter the piston rod extends outwards or retracts inwards, and it is guaranteed that the output force of the air cylinder is kept in a stable and constant state; and stable liquid conveying and supplying are achieved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic control technology, and in particular to a stable integrated pneumatic control module and a pneumatic device having the module. Background Technology

[0002] In industrial production, cylinders are often used to drive liquids for transporting and supplying liquids, such as adhesives. Before the compressed gas from an external air pump enters the cylinder, it must pass through components such as pressure reducing valves, solenoid valves, and silencers. These components are generally connected to the cylinder through pipes, which can easily lead to air leaks due to the numerous interfaces. Furthermore, the complex air pipeline can result in slow cylinder operation.

[0003] To address the aforementioned technical problems, Chinese utility model patent CN204267397U discloses a pneumatic device, including a cylinder, a control integrated module, a solenoid valve, and a quick-release valve. The cylinder includes a cylinder barrel and a push rod, with a first air port and a second air port on the cylinder barrel. The control integrated module includes a central transverse flow channel, a first vertical flow channel, and a second vertical flow channel. The central transverse flow channel includes an air inlet and an air outlet on its top surface. The first vertical flow channel includes a solenoid valve connection port and a cylinder connection port. The second vertical flow channel includes a quick-release valve connection port and a cylinder connection port. The solenoid valve includes a first connection port and a second connection port on its bottom surface, an external air source port, a first atmospheric air port, and a second atmospheric air port on its side surface. The first connection port connects to the air inlet port of the central transverse flow channel, and the second connection port connects to the solenoid valve connection port of the first vertical flow channel. Through the control integrated module, the pneumatic device eliminates the need for pipe connections between the solenoid valve, quick-release valve, and cylinder, reducing the possibility of air leakage. Furthermore, the overall structure is compact and has a fast response speed.

[0004] In practical applications, to achieve a constant flow rate for liquid delivery and supply, the output force of the cylinder must be kept stable and constant, meaning the forces on both sides of the piston driving the cylinder must be balanced. However, for a single-piston-rod cylinder, which includes a rod chamber with a piston rod and a rodless chamber without a piston rod, compressed gas is input into the rodless chamber to drive the piston rod outward, and compressed gas is input into the rod chamber to drive the piston rod inward. Due to the presence of a single piston rod, the area of ​​the piston affected by the gas pressure in the rod chamber is smaller than that in the rodless chamber. Therefore, to ensure force balance on both sides of the piston, the pressure of the compressed gas input into the rodless chamber must be different from that input into the rod chamber; that is, the amount of compressed gas input into the cylinder needs to be adjusted in real time according to the direction of piston rod movement. The solenoid valve in the aforementioned pneumatic device can only control the direction of movement of the cylinder push rod by turning it on or off, that is, to realize the reversal of the movement of the cylinder push rod. However, the solenoid valve cannot accurately control the intake of compressed gas in real time, so it cannot guarantee that the output of the cylinder remains stable and constant, which leads to unstable liquid delivery and supply.

[0005] Therefore, it is necessary to provide a technical solution to address the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a stable integrated pneumatic control module and a pneumatic device with the module, which can solve the technical problem in the prior art that the compressed gas intake of the cylinder cannot be accurately controlled in real time, resulting in the cylinder output force not being able to maintain a stable and constant state.

[0007] To address the aforementioned technical problems, this utility model provides a stable integrated pneumatic control module, comprising an integrated base with an air passage assembly within it; it also includes a control circuit board, a first solenoid valve, and a second solenoid valve, both of which are connected to the control circuit board; external compressed gas enters the pneumatic control module through the inlet of the first solenoid valve, the outlet of the first solenoid valve is connected to the air passage assembly, and both the inlet and outlet of the second solenoid valve are connected to the air passage assembly; the surface of the integrated base has two cylinder connection holes connected to an external cylinder, both of which are connected to the air passage assembly; the first solenoid valve controls the amount of compressed gas entering, and the second solenoid valve controls the direction of movement of the piston rod of the external cylinder.

[0008] Furthermore, it also includes a mounting base, which is disposed on the integrated base. The first solenoid valve is disposed inside the mounting base or on the surface of the mounting base. The surface of the mounting base is provided with a mounting base air inlet, which is connected to the air inlet of the first solenoid valve. External compressed gas enters the air inlet of the first solenoid valve through the mounting base air inlet.

[0009] Furthermore, the surface of the integrated base is provided with a first communication hole that communicates with the air passage assembly, and the first communication hole communicates with the connecting air passage of the mounting base.

[0010] Furthermore, the second solenoid valve is disposed on the surface of the integrated base, and the surface of the integrated base is also provided with a plurality of second communication holes communicating with the air passage assembly. The air inlet and air outlet of the second solenoid valve are respectively connected to the air passage assembly through the plurality of second communication holes.

[0011] Furthermore, the surface of the integrated base is provided with several exhaust holes, and the air duct assembly is connected to the atmosphere through several of the exhaust holes.

[0012] Furthermore, it also includes a control knob, which is connected to the control circuit board.

[0013] Furthermore, a groove is provided in the middle of the integrated base, and the control circuit board is disposed in the groove.

[0014] Furthermore, a protective cover plate is provided on the top of the groove, and an avoidance through hole is provided on the protective cover plate to avoid the control knob. The control knob extends to the upper side of the protective cover plate through the avoidance through hole.

[0015] Furthermore, the control knob has multiple positions, and position markings corresponding to the multiple positions are provided around the control knob on the upper surface of the protective cover.

[0016] On the other hand, the present invention also provides a pneumatic device, which includes a stable integrated pneumatic control module as described in any of the above claims and a cylinder. The cylinder is disposed on the surface of the integrated base, and the two air ports of the cylinder are respectively connected to the two cylinder communication holes.

[0017] This utility model discloses a stable integrated pneumatic control module. By setting up a control circuit board and a first solenoid valve and a second solenoid valve, the control circuit board controls the second solenoid valve to be energized or de-energized according to whether the piston rod of the cylinder needs to extend outward or retract inward. At the same time, it controls the opening time of the first solenoid valve, so that the first solenoid valve can accurately control the intake of compressed gas in real time according to the movement direction of the piston rod. This ensures that the piston rod is subjected to balanced forces on both sides, whether it is extending outward or retracting inward, thereby ensuring that the output force of the cylinder remains in a stable and constant state, thus achieving stable liquid delivery and supply. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the pneumatic control module of this utility model (the first solenoid valve is set on the upper surface of the mounting base).

[0019] Figure 2 This is another structural schematic diagram of the pneumatic control module of this utility model (the first solenoid valve is set on the upper surface of the mounting base).

[0020] Figure 3 This is a schematic diagram of the pneumatic control module of this utility model (the first solenoid valve is installed inside the mounting base).

[0021] Figure 4 This is another structural schematic diagram of the pneumatic control module of this utility model (the first solenoid valve is installed inside the mounting base).

[0022] Figure 5 This is a schematic diagram of the pneumatic device of this utility model (the first solenoid valve is installed on the upper surface of the mounting base).

[0023] Figure 6 This is a schematic diagram of the pneumatic device of this utility model (the first solenoid valve is set on the upper surface of the mounting base) from another angle.

[0024] Figure 7 This is a schematic diagram of the pneumatic device of this utility model (the first solenoid valve is installed inside the mounting base).

[0025] Figure 8 This is a schematic diagram of the pneumatic device of this utility model (the first solenoid valve is installed inside the mounting base) from another angle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Integrated base; 2-Cylinder; 3-Control circuit board; 5-First solenoid valve; 6-Second solenoid valve; 7-Cylinder connecting hole; 8-Mounting seat; 81-Mounting seat air inlet; 82-Snap-fit ​​groove; 9-Exhaust hole; 10-Control knob; 11-Groove; 12-Protective cover; 13-Gear position indicator; 14-Cylinder mounting hole. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0029] Example 1

[0030] This embodiment provides a stable integrated pneumatic control module, including an integrated base 1 with an air passage assembly in the base 1; it also includes a control circuit board 3, a first solenoid valve 5, and a second solenoid valve 6, both of which are connected to the control circuit board 3; external compressed gas enters the pneumatic control module through the inlet of the first solenoid valve 5, the outlet of the first solenoid valve 5 is connected to the air passage assembly, and both the inlet and outlet of the second solenoid valve 6 are connected to the air passage assembly; the surface of the integrated base 1 has two cylinder connection holes 7 that communicate with an external cylinder, and both cylinder connection holes 7 are connected to the air passage assembly; the first solenoid valve 5 controls the amount of compressed gas entering, and the second solenoid valve 6 controls the direction of movement of the piston rod of the external cylinder. Specifically, the air passage assembly includes several longitudinal air passages and several transverse air passages disposed in the integrated base 1; the first solenoid valve 5, the second solenoid valve 6, and the external cylinder are connected through several longitudinal air passages and several transverse air passages; the first solenoid valve 5 is a two-position two-way valve or a two-position three-way valve, and the control circuit board 3 achieves real-time precise control of the amount of compressed gas entering the pneumatic control module by precisely controlling the opening time of the first solenoid valve 5; the second solenoid valve 6 is a two-position five-way solenoid valve, which includes one air inlet, two forward and reverse action air outlets, and two exhaust ports. The one air inlet and the two air outlets are respectively connected to the air passage assembly, and the two exhaust ports can be directly connected to the atmosphere or connected to the atmosphere through the air passage assembly; the reciprocating motion of the piston rod of the external cylinder is achieved by opening and closing the second solenoid valve 6.

[0031] External compressed gas enters through the inlet of the first solenoid valve 5, and the amount of compressed gas entering is controlled by controlling the opening time of the first solenoid valve 5. The compressed gas then enters the air passage group through the outlet of the first solenoid valve 5, and then enters the inlet of the second solenoid valve 6 through the air passage group. Next, it enters the air passage group through one of the outlets of the second solenoid valve 6, and then enters one of the cylinder connecting holes 7 through the air passage group, and enters the rodless chamber or rod chamber of the external cylinder, thereby driving the piston rod in the external cylinder to extend outward or retract inward. In actual use, the control circuit board 3 controls the second solenoid valve 6 to be energized or de-energized according to whether the piston rod of the external cylinder needs to extend outward or retract inward, and at the same time controls the opening time of the first solenoid valve 5. This allows the first solenoid valve 5 to accurately control the amount of compressed gas entering in real time according to the direction of piston rod movement, so that whether the piston rod extends outward or retracts inward, the forces on both sides of the piston are balanced, thereby ensuring that the output force of the cylinder remains in a stable and constant state, thus achieving stable liquid delivery and supply.

[0032] Furthermore, it also includes a mounting base 8, which is disposed on the integrated base 1. The first solenoid valve 5 is disposed inside the mounting base 8 or on the surface of the mounting base 8. The surface of the mounting base 8 has a mounting base air inlet 81, which communicates with the air inlet of the first solenoid valve 5. External compressed gas enters the air inlet of the first solenoid valve 5 through the mounting base air inlet 81. The surface of the integrated base 1 also has a first connecting hole communicating with the air passage assembly. The first connecting hole communicates with the air inlet of the first solenoid valve 5. Specifically, the mounting base 8 is detachably connected to the upper surface of the integrated base 1, and the mounting base 8 is provided with a snap-fit ​​groove 82. The snap-fit ​​groove 82 is used to install an external filter. The air outlet of the filter communicates with the mounting base air inlet 81. Compressed gas from the external air source enters the mounting base air inlet 81 after passing through the filter, and then enters the air inlet of the first solenoid valve 5 through the mounting base air inlet 81.

[0033] Furthermore, the second solenoid valve 6 is disposed on the surface of the integrated base 1, and the surface of the integrated base 1 is also provided with a plurality of second connecting holes communicating with the air passage assembly. The air inlet and air outlet of the second solenoid valve 6 are respectively connected to the air passage assembly through the plurality of second connecting holes. Specifically, the second solenoid valve 6 is detachably connected to the upper surface of the integrated base 1, and the plurality of second connecting holes are also disposed on the upper surface of the integrated base 1.

[0034] Furthermore, the surface of the integrated base 1 is also provided with a plurality of exhaust holes 9, and the air passage assembly is connected to the atmosphere through the plurality of exhaust holes 9. The gas flowing out of the cylinder enters the air passage assembly through the exhaust port of the second solenoid valve, then flows from the air passage assembly to the exhaust holes 9, and is discharged into the atmosphere through the exhaust holes 9. A muffler can be installed on the exhaust holes 9 to reduce the noise generated when the gas is discharged.

[0035] Furthermore, it also includes a control knob 10, which is connected to the control circuit board 3. Users can easily and quickly select the cylinder output force by turning the control knob 10.

[0036] Furthermore, a groove 11 is provided in the middle of the integrated base 1, and the control circuit board 3 is disposed in the groove 11. A protective cover plate 12 is provided on the top of the groove 11, and the protective cover plate 12 has a clearance through hole to avoid the control knob 10. The control knob 10 extends to the upper side of the protective cover plate 12 through the clearance through hole. By providing a groove in the integrated base 1 to place the control circuit board 3, the overall structure of the pneumatic control module can be made more compact. The protective cover plate 12 on the top of the groove can effectively protect the control circuit board 3, and the control knob 10 extending to the upper side of the protective cover plate 12 can facilitate user adjustment of the control knob 10.

[0037] Furthermore, the control knob 10 has multiple gear positions, and gear position markings 13, corresponding to each of the multiple gear positions, are provided around the upper surface of the protective cover 12. Specifically, the gear position markings 13 use Arabic numerals; of course, in some other embodiments, the gear position markings 13 can also be Chinese numerals, Roman numerals, etc. By setting the gear position markings 13 and providing pointer lines on the control knob 10, it is convenient for the user to adjust the control knob 10 to the appropriate gear position.

[0038] In actual use, the user adjusts the control knob 10 to the appropriate position according to the required cylinder output. The control circuit board 3 controls the opening time of the first solenoid valve 5 according to the position of the control knob 10 and the movement direction of the cylinder piston rod, so that the cylinder output meets the user's needs and the cylinder output remains in a balanced and stable state.

[0039] Example 2

[0040] This embodiment provides a pneumatic device, which includes a stable integrated pneumatic control module as described in any one of embodiments 1 and a cylinder 2. The cylinder 2 is disposed on the surface of the integrated base 1, and the two air ports of the cylinder 2 are respectively connected to the two cylinder communication holes 7. Specifically, the cylinder 2 is detachably connected to the upper surface of the integrated base 1.

[0041] The pneumatic device in this embodiment is equipped with the stable integrated pneumatic control module of Embodiment 1. The control circuit board 3 in the pneumatic control module controls the second solenoid valve 6 to be energized or de-energized according to whether the piston rod of the cylinder 2 needs to extend outward or retract inward. At the same time, it controls the opening time of the first solenoid valve 5, so that the first solenoid valve 5 can accurately control the intake of compressed gas in real time according to the movement direction of the piston rod. This ensures that the piston rod of the cylinder 2 is subjected to balanced forces on both sides, whether it extends outward or retracts inward, thereby ensuring that the output of the cylinder 2 remains stable and constant, thus achieving stable liquid delivery and supply.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A stable integrated pneumatic control module, comprising an integrated base (1), wherein an air passage assembly is provided in the integrated base (1); characterized in that: It also includes a control circuit board (3), a first solenoid valve (5) and a second solenoid valve (6), both of which are connected to the control circuit board (3); external compressed gas enters the pneumatic control module through the inlet of the first solenoid valve (5), the outlet of the first solenoid valve (5) is connected to the air passage group, and the inlet and outlet of the second solenoid valve (6) are both connected to the air passage group; the surface of the integrated base (1) has two cylinder connection holes (7) connected to the external cylinder, and both cylinder connection holes (7) are connected to the air passage group; the first solenoid valve (5) is used to control the amount of compressed gas entering, and the second solenoid valve (6) is used to control the direction of movement of the piston rod of the external cylinder.

2. The smooth integrated pneumatic control module according to claim 1, characterized in that: It also includes a mounting base (8), which is disposed on the integrated base (1). The first solenoid valve (5) is disposed inside the mounting base (8) or on the surface of the mounting base (8). The surface of the mounting base (8) is provided with a mounting base air inlet (81), which is connected to the air inlet of the first solenoid valve (5). External compressed gas enters the air inlet of the first solenoid valve (5) through the mounting base air inlet (81).

3. The smooth integrated pneumatic control module according to claim 2, characterized in that: The surface of the integrated base (1) is also provided with a first communication hole that communicates with the airway assembly. The first communication hole communicates with the connecting airway of the mounting base (8).

4. The smooth integrated pneumatic control module according to claim 1, characterized in that: The second solenoid valve (6) is disposed on the surface of the integrated base (1). The surface of the integrated base (1) is also provided with a plurality of second communication holes that communicate with the air passage group. The air inlet and air outlet of the second solenoid valve (6) are respectively connected to the air passage group through the plurality of second communication holes.

5. The smooth integrated pneumatic control module according to claim 1, characterized in that: The surface of the integrated base (1) is also provided with a number of exhaust holes (9), and the air passage group is connected to the atmosphere through the number of exhaust holes (9).

6. The smooth integrated pneumatic control module according to claim 1, characterized in that: It also includes a control knob (10), which is connected to the control circuit board (3).

7. The smooth integrated pneumatic control module according to claim 6, characterized in that: The integrated base (1) has a groove (11) in the middle, and the control circuit board (3) is disposed in the groove (11).

8. The smooth integrated pneumatic control module according to claim 7, characterized in that: A protective cover plate (12) is provided on the top of the groove (11). The protective cover plate (12) has a clearance through hole to avoid the control knob (10). The control knob (10) extends to the upper side of the protective cover plate (12) through the clearance through hole.

9. A smooth integrated pneumatic control module according to claim 8, characterized in that: The control knob (10) has multiple gear positions, and gear position markings (13) corresponding to the multiple gear positions are provided around the upper surface of the protective cover (12) around the control knob (10).

10. A pneumatic device, characterized in that: The pneumatic device includes a smooth integrated pneumatic control module as described in any one of claims 1-9 and a cylinder (2), wherein the cylinder is disposed on the surface of the integrated base (1), and the two air ports of the cylinder (2) are respectively connected to the two cylinder communication holes (7).

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