Pneumatic control system for blanking equipment

Abstract

The utility model discloses a pneumatic control system for blanking equipment, which is characterized in that the pneumatic control system comprises an air source processor (1), an outlet end of the air source processor (1) is respectively connected with a port 1 of a pressure reducing valve (2) and a port 1 of a two-position five-way single electric control valve (3) through a three-way valve, and a port 2 of the pressure reducing valve (2) is connected with an inlet of a pressure regulating air storage tank (4). An outlet of the pressure-regulating gas storage tank (4) is connected with a first port of the two-position three-way single pneumatic control valve (5), a second port of the two-position five-way single electric control valve (3) is connected with an inlet of the quick exhaust valve (6), a second port of the two-position three-way single pneumatic control valve (5) is connected with a first port of the impact cylinder (7), and a second port of the impact cylinder (7) is connected with an outlet of the quick exhaust valve (6). And a port 2 of the two-position five-way single electric control valve (3) is connected with a port 14 of the two-position three-way single pneumatic control valve (5).

Description

Technical Field

[0001] The utility model relates to a pneumatic control system, in particular to a pneumatic control system for material feeding equipment. Background Art

[0002] At present, various pneumatic control circuits are often used in the mechanical field. In various industries, blanking is a very common process requirement, so many types of blanking equipment have been born: manual, semi-automatic, automatic blanking equipment, etc. The control characteristics of the more commonly used equipment in the industry are low cost and low efficiency, and its blanking qualification rate is also relatively low. The high-cost automatic blanking equipment usually has electric pressing as the power source. This pressing method is efficient and has a high blanking qualification rate, but the power cost is high, the equipment maintenance cost is also high, and the heat dissipation effect is poor after long-term operation, and a certain cooling time is required.

[0003] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a pneumatic control system for feeding equipment with simple structure, ingenious design, reasonable layout, low power cost, low maintenance cost and high efficiency.

[0005] The technical solution of the utility model is: a pneumatic control system for a material feeding device, characterized in that: the pneumatic control system comprises an air source processing 1, the outlet end of the air source processing 1 is respectively connected to the port 1 of the pressure reducing valve 2 and the port 1 of the two-position five-way single electric control valve 3 through a three-way valve,

[0006] The second port of the pressure reducing valve 2 is connected to the inlet of the pressure regulating gas storage tank 4.

[0007] The outlet of the pressure regulating gas storage tank 4 is connected to the port 1 of the two-position three-way single gas control valve 5.

[0008] Port 2 of the two-position five-way single solenoid valve 3 is connected to the inlet of the quick exhaust valve 6.

[0009] The 2nd port of the two-position three-way single air control valve 5 is connected to the 1st port of the impact cylinder 7, and the 2nd port of the impact cylinder 7 is connected to the outlet of the quick exhaust valve 6.

[0010] The port 2 of the two-position five-way single electric control valve 3 is connected to the port 14 of the two-position three-way single air control valve 5.

[0011] A piston 8 is movably connected inside the impact cylinder 7, and the piston 8 is connected to a piston rod 9. The end of the piston rod 9 is connected to a blanking die 10. A partition 11 is provided inside the impact cylinder 7, and a nozzle 12 is provided on the partition 11. The nozzle 12 is in a bell-mouth shape, and the diameter of the outlet end of the nozzle 12 is smaller than the diameter of the inlet end. The partition 11 and the piston 8 divide the inner cavity of the impact cylinder 7 into three parts: an energy storage chamber 13, a transition chamber 14 and a piston rod chamber 15.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The pneumatic control system used in this structural form of the blanking equipment has a simple structure, ingenious design, and reasonable layout. In view of the problems existing in the traditional blanking equipment, it changes the control part of the blanking equipment driven by electric pressing into a pneumatic control system. A pressure-regulating gas storage tank is provided in the system. The gas storage tank can convert the pressure of the compressed air inside into high-speed movement of the piston rod. The piston rod is used to drive the blanking mold to work on the raw materials, and the high-speed blanking operation has been completed. Moreover, the piston rod and the blanking mold can be disassembled, that is, different molds can be replaced as needed, that is, one blanking equipment can perform blanking operations on workpieces of various shapes or specifications, which can effectively reduce costs. At the same time, it is simple to make and has low manufacturing costs. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall layout diagram of an embodiment of the utility model.

[0015] Figure 2 It is a schematic structural diagram of the impact cylinder part in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figure 1 , Figure 2 As shown: A pneumatic control system for a material feeding device, which includes an air source processing 1, the outlet end of the air source processing 1 is connected to the port 1 of the pressure reducing valve 2 and the port 1 of the two-position five-way single electric control valve 3 through a three-way valve.

[0017] The second port of the pressure reducing valve 2 is connected to the inlet of the pressure regulating gas storage tank 4.

[0018] The outlet of the pressure regulating gas storage tank 4 is connected to the port 1 of the two-position three-way single gas control valve 5.

[0019] Port 2 of the two-position five-way single solenoid valve 3 is connected to the inlet of the quick exhaust valve 6.

[0020] The 2nd port of the two-position three-way single air control valve 5 is connected to the 1st port of the impact cylinder 7, and the 2nd port of the impact cylinder 7 is connected to the outlet of the quick exhaust valve 6.

[0021] The port 2 of the two-position five-way single electric control valve 3 is connected to the port 14 of the two-position three-way single air control valve 5.

[0022] A piston 8 is movably connected inside the impact cylinder 7, and the piston 8 is connected to a piston rod 9. The end of the piston rod 9 is connected to a blanking die 10. A partition 11 is provided inside the impact cylinder 7, and a nozzle 12 is provided on the partition 11. The nozzle 12 is in a bell-mouth shape, and the diameter of the outlet end of the nozzle 12 is smaller than the diameter of the inlet end. The partition 11 and the piston 8 divide the inner cavity of the impact cylinder 7 into three parts: an energy storage chamber 13, a transition chamber 14 and a piston rod chamber 15.

[0023] The working process of the pneumatic control system for the material unloading equipment of the embodiment of the utility model is as follows: first, the air source is turned on, and the air source processing 1 starts working;

[0024] At this time, port 1 of the pressure reducing valve 2 is ventilated, and port 2 is discharged. The gas enters the inner cavity of the pressure regulating gas storage tank 4 through the pipeline and is discharged from the outlet of the pressure regulating gas storage tank 4. Port 1 of the two-position three-way single air control valve 5 and port 1 of the two-position five-way single electric control valve 3 are ventilated;

[0025] At this time, port 14 of the two-position five-way single solenoid valve 3 is energized, causing the two-position five-way single solenoid valve 3 to switch direction, and the lower chamber of the impact cylinder 7 will be quickly exhausted through the quick exhaust valve 6; at the same time, port 1 of the two-position five-way single solenoid valve 3 is ventilated, while port 14 of the two-position three-way single air control valve 5 is ventilated, and port 2 of the two-position three-way single air control valve 5 is ventilated, allowing the compressed air in the pressure-regulating air storage tank 4 to quickly enter the energy storage chamber 13 of the impact cylinder 7. Since the effective area of ​​the piston rod chamber 15 on the piston 8 is much larger than the effective area of ​​the nozzle 12 on the piston 8, the pressure from the piston rod chamber 15 on the piston 8 is also greater than the pressure on one side of the energy storage chamber 13, that is, the piston 8 will not move in the initial stage; only When the pressure in the energy storage chamber 13 reaches a certain level, and the pressure on one side of the energy storage chamber 13 is greater than the pressure in the piston rod chamber 15, the piston 8 moves toward the direction of the piston rod chamber 13, and at the moment when the piston 8 leaves the nozzle 12, the gas in the energy storage chamber 13 will fill the transition chamber 14. At this time, the force-bearing area of ​​the side of the piston 8 close to the transition chamber 14 is equal to the area of ​​the side close to the piston rod chamber 15, but the pressure is much higher than that of the side of the piston rod chamber 15. Therefore, the piston 8 will be subjected to a relatively large pressure on one side of the transition chamber 14, and under the action of this pressure, the piston rod 9 and the blanking die 10 connected to the piston rod 9 will be instantly driven to move, and the blanking die 10 will realize the stamping / punching action on the workpiece;

[0026] After the unloading action is completed, the 14th port of the two-position five-way single solenoid control valve 3 is powered off, the two-position five-way single solenoid control valve 3 is fanned, the 14th port of the two-position three-way single air control valve 5 is cut off, and the two-position three-way single air control valve 5 is reversed. The above actions will cause air to enter one side of the piston rod chamber 15 of the impact cylinder 7, while the energy storage chamber 13 is exhausted, the piston 8 moves in the opposite direction, the impact cylinder 7 is reset, and a working cycle is completed.

Claims

1. A pneumatic control system for a material feeding device, characterized in that: The pneumatic control system comprises an air source processing (1), the outlet end of the air source processing (1) is connected to port 1 of a pressure reducing valve (2) and port 1 of a two-position five-way single electric control valve (3) through a three-way valve. The two ports of the pressure reducing valve (2) are connected to the inlet of the pressure regulating gas storage tank (4). The outlet of the pressure regulating gas storage tank (4) is connected to the first port of the two-position three-way single gas control valve (5). Port 2 of the two-position five-way single solenoid valve (3) is connected to the inlet of the quick exhaust valve (6). The two ports of the two-position three-way single air control valve (5) are connected to the one port of the impact cylinder (7), and the two ports of the impact cylinder (7) are connected to the outlet of the quick exhaust valve (6). Port 2 of the two-position five-way single solenoid-controlled valve (3) is connected to port 14 of the two-position three-way single pneumatic-controlled valve (5). A piston (8) is movably connected in the impact cylinder (7), the piston (8) is connected to a piston rod (9), the end of the piston rod (9) is connected to a blanking die (10), a partition (11) is provided in the impact cylinder (7), a nozzle (12) is provided on the partition (11), the nozzle (12) is in a bell-mouth shape, and the caliber of the outlet end of the nozzle (12) is smaller than the caliber of the inlet end thereof, the partition (11) and the piston (8) divide the inner cavity of the impact cylinder (7) into three parts: an energy storage cavity (13), a transition cavity (14) and a piston rod cavity (15).

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