Pneumatic high pressure butter oiler

Abstract

The invention belongs to the technical field of butter oil injection, and relates to a pneumatic high-pressure butter oil injection machine, which includes a barrel body, an oil injection pump and a cylinder. The cylinder includes an inner cylinder and an outer cylinder. There is a ventilation gap between the cylindrical surface and the inner cylindrical surface of the outer cylinder. The air supply port or exhaust port of the reversing valve communicates with the upper chamber of the piston through the ventilation gap, and the exhaust port or air supply port of the reversing valve passes through the internal channel. It communicates with the lower chamber of the piston, and the lower side of the pump body seat of the oil injection pump is connected with a connecting pipe and an oil inlet casing in turn. There is a valve core matched with the oil inlet valve seat, and the pump body seat on the upper side of the pressurized chamber surrounded by the pump body seat, the oil inlet sleeve, the connecting pipe, the oil inlet valve seat and the valve core is provided with an oil outlet joint. : Double cylinder structure and four-corner spool are adopted, so that the failure rate of the product is low, and the oil injection efficiency is high, which is suitable for oil injection of high-pressure butter oil injection parts.

Description

technical field [0001] The invention belongs to the technical field of butter oiling, in particular to a pneumatic high-pressure butter oiling machine. Background technique [0002] see figure 1 : Chinese patent CN 102506286B discloses a "pneumatic high-pressure oiler", in which a piston 7 connected to a piston rod 8 is arranged in the cylinder 1, and the up and down movement of the piston 7 drives the reversing valve 9, so that the high pressure from the air source The gas enters from the intake joint and passes through the reversing valve, and is alternately distributed to the upper chamber of the piston of cylinder 1 for intake, and the lower chamber of the piston for exhaust, and the gas allocated to the lower chamber of the piston of cylinder 1 for intake, and the upper chamber of the piston for exhaust, wherein: The reversing valve is connected with the upper cavity of the piston and the reversing valve through an external conduit and joint. or other objects collided...

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Problems solved by technology

[0002] see figure 1 : Chinese patent CN 102506286B discloses a "pneumatic high-pressure oiler", in which a piston 7 connected to a piston rod 8 is arranged in the cylinder 1, and the up and down movement of the piston 7 drives the reversing valve 9, so that the high pressure from the air source The gas enters from the intake joint and passes through the reversing valve, and is alternately distributed to the upper chamber of the piston of cylinder 1 for intake, and the lower chamber of the piston for exhaust, and the gas allocated to the lower chamber of the piston of cylinder 1 for intake, and the upper chamber of the piston for exhaust, wherein: The reversing valve is connected with the upper cavity of the piston and the reversing valve through an external conduit and joint. or other objects collided to cause looseness or cracks and air leakage, which directly affects the normal operation of the pneumatic high-pressure oiler. At the same time, due to the thinner conduit, it affects the ventilation volume; in addition, it was found during use: the connecting pipe 4 connected to the lower side of the pump body seat And the spool on the valve on the lower part of the connecting rod assembly 5 connected to the piston rod 8 in the connecting pipe is a cylindrical spool made of metal material, if there are impurities such as sand grains in the butter, it is easy to get stuck between the valve seat and the valve. A pressure relief gap is formed between the cores 6, so that the pressure oil in the high-pressure chamber will leak from the pressure relief gap, resulting in a decrease in the maximum oil injection pressure of the pneumatic high-pressure oil injector, which will affect the oil injection efficiency in the slightest, and in severe cases for those that require high-pressure oil injection The part cannot complete the oiling task, and disassembly and maintenance need to waste a lot of time and energy. Repeated disassembly and assembly will also reduce the service life of the pneumatic high-pressure oiler and increase the production cost

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