CN219622965U

CN219622965U - Servo pressurizing mechanism

Info

Publication number: CN219622965U
Application number: CN202321128408.8U
Authority: CN
Inventors: 罗长云
Original assignee: Huizhou Jinchi Packaging Technology Co ltd
Current assignee: Huizhou Jinchi Packaging Technology Co ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-09-01
Anticipated expiration: 2033-05-11

Abstract

The utility model discloses a servo pressurizing mechanism which comprises a pressurizing cylinder, a driving assembly, an oil tank and an energy accumulator, wherein the pressurizing cylinder comprises a cylinder body and a piston rod, the piston rod is arranged in the cylinder body and divides the cylinder body into an upper oil cavity and a lower oil cavity, the driving assembly is connected with the piston rod, the oil tank is communicated with the upper oil cavity through a first oil pipe, the energy accumulator is communicated with the lower oil cavity through a second oil pipe, and a third oil pipe is communicated between the first oil pipe and the second oil pipe. According to the servo pressurizing mechanism, the driving group drives the piston rod to move, when the piston rod moves downwards, oil in the oil tank is sucked into the upper oil cavity from the first oil pipe, oil in the lower oil cavity is extruded into the energy accumulator from the second oil pipe, when pressurizing, the oil tank is closed, the piston rod continues to move downwards, and oil in the energy accumulator and oil in the lower oil cavity are pressed into the upper oil cavity, so that the pressurizing effect is achieved, finally, the operation of the pressurizing mechanism is reasonable, and the pressurizing is carried out through the energy accumulator, so that the whole structure of the pressurizing mechanism is simpler.

Description

Servo pressurizing mechanism

Technical Field

The utility model relates to the technical field of supercharging equipment, in particular to a servo supercharging mechanism.

Background

The cylinder is also called as a gas-liquid cylinder, which is improved by combining the advantages of a cylinder and an oil cylinder, hydraulic oil is strictly isolated from compressed air, a piston rod in the cylinder automatically starts to travel after contacting a workpiece, the cylinder is fast in action speed and stable in pneumatic transmission, a cylinder device is simple, the output is easy to adjust, high output of the hydraulic press can be achieved under the same condition, the energy consumption is low, the soft landing does not damage a die, the installation is easy, a special cylinder can be installed at any angle of 360 degrees, the occupied space is small, the trouble of few faults and no temperature rise exists, the service life is long, the noise is small, and the like.

Currently, the existing booster cylinders are generally mechanical booster cylinders, such as the chinese patent approved by the inventor: 202120086467.8, however, the mechanical type of the cylinder needs to be provided with two sets of driving devices at the same time, so that the structure of the cylinder is complex, and a cylinder with a simpler structure is needed to meet the market demand.

Disclosure of Invention

The utility model aims to provide a servo pressurizing mechanism which is simple in structure and reasonable in operation.

In order to solve the technical problems, the utility model can be realized by adopting the following technical scheme:

the utility model provides a servo booster mechanism, includes the booster cylinder, drive assembly, oil tank and accumulator, the booster cylinder includes cylinder body and piston rod, and the cylinder body is inside to the piston rod is arranged in the cylinder body to separate into oil pocket and lower oil pocket with the cylinder body inside, drive group is connected with the piston rod, and drives the piston rod and remove in the cylinder body inside, and the oil tank communicates with last oil pocket through first oil pipe, and the accumulator communicates with lower oil pocket through second oil pipe, and the intercommunication has third oil pipe between first oil pipe and second oil pipe.

In one embodiment, a first control valve is disposed on the first oil line.

In one embodiment, a second control valve is disposed on the second oil pipe.

In one embodiment, a third control valve is disposed on the third oil pipe.

In one embodiment, a pressure relief pipeline is further arranged between the second oil pipe and the oil tank/the first oil pipe.

In one embodiment, the pressure relief pipeline is provided with a pressure relief valve.

In one embodiment, the driving set comprises a motor and a screw rod, the motor is located on one side of the cylinder body, the screw rod is arranged in the cylinder body, one end of the screw rod is connected with the motor through a belt, and the other end of the screw rod is connected with the piston rod.

In one embodiment, the motor is a servo motor.

Advantageous effects

According to the servo pressurizing mechanism, the driving group drives the piston rod to move in the cylinder body, when the piston rod moves downwards, oil in the oil tank is sucked into the upper oil cavity from the first oil pipe, oil in the lower oil cavity is extruded into the energy accumulator from the second oil pipe, when pressurizing is needed, the oil tank is closed, the piston rod moves downwards continuously, at the moment, oil in the energy accumulator and oil in the lower oil cavity are both pressed into the upper oil cavity, so that the pressurizing effect is achieved, when the pressurizing is finished, the energy accumulator is closed, the oil tank is opened, the piston rod moves upwards and resets under the driving of the driving group, the oil in the upper oil cavity and the oil in the oil tank are filled into the lower oil cavity, finally, the operation of the pressurizing mechanism is reasonable, and the pressurizing is carried out through the energy accumulator, so that the whole structure of the pressurizing mechanism is simpler.

Drawings

FIG. 1 is a schematic diagram of the servo boost mechanism of the present utility model in operation;

FIG. 2 is a schematic diagram of a boost condition of the servo boost mechanism of the present utility model;

FIG. 3 is a schematic diagram of a reset state of the servo boost mechanism of the present utility model.

As shown in the accompanying drawings:

100. a pressurizing cylinder; 110. a cylinder; 111. an upper oil cavity; 112. a lower oil cavity; 120. a piston rod;

200. a drive group; 210. a motor; 220. a screw rod; 230. a belt;

300. an oil tank;

400. an energy storage;

500. a first oil pipe; 510. a first control valve;

600. a second oil pipe; 610. a second control valve;

700. a third oil pipe; 710. a third control valve;

800. a pressure relief conduit; 810. and a pressure release valve.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a servo pressurizing mechanism includes a pressurizing cylinder 100, a driving assembly 200, an oil tank 300 and an accumulator 400, wherein the pressurizing cylinder 100 includes a cylinder body 110 and a piston rod 120, the piston rod 120 is disposed inside the cylinder body 110 and divides the interior of the cylinder body 110 into an upper oil chamber 111 and a lower oil chamber 112, the driving assembly 200 is connected with the piston rod 120 and drives the piston rod 120 to move inside the cylinder body 110, the oil tank 300 is communicated with the upper oil chamber 111 through a first oil pipe 500, the accumulator 400 is communicated with the lower oil chamber 112 through a second oil pipe 600, and a third oil pipe 700 is communicated between the first oil pipe 500 and the second oil pipe 600.

In addition, a first control valve 510 is provided on the first oil pipe 500, a second control valve 610 is provided on the second oil pipe 600, a third control valve 710 is provided on the third oil pipe 700, and at the same time, a pressure release pipe 800 is also provided between the second oil pipe 600 and the oil tank/first oil pipe 500, and a pressure release valve 810 is provided on the pressure release pipe 800.

Specifically, in this embodiment, under normal operation conditions, the pressurizing mechanism opens the first control valve 510 on the first oil pipe 500 and the second control valve 610 on the second oil pipe 600, and closes the third control valve 710 on the third oil pipe 700, at this time, the driving set 200 is started, the driving set 200 starts to rotate forward, and drives the piston rod 120 to move downward in the cylinder 110, while the oil in the oil tank 300 is sucked into the upper oil cavity 111 through the first oil pipe 500, meanwhile, the oil in the lower oil cavity 112 is extruded into the accumulator 400 through the second oil pipe 600, and when the oil in the accumulator 400 is fully extruded (the pressure is too high), the pressure release valve 810 on the pressure release pipe 800 is opened, at this time, the redundant oil in the lower oil cavity 112 is pressed into the oil tank 300 or the first oil pipe 500 through the pressure release pipe 800, and then is sent into the upper oil cavity 111 by the first oil pipe 500 until the piston rod 120 reaches a predetermined position.

When the pressurization is needed, the first control valve 510 on the first oil pipe 500 is closed, the second control valve 610 on the second oil pipe 600 is opened, and the third control valve 710 on the third oil pipe 700 is opened, at this time, the driving set 200 is started again, the driving set 200 rotates forward again, and the piston rod 120 is driven to move downward in the cylinder 110 again, the accumulator 400 injects oil into the first oil pipe 500 through the second oil pipe 600 and the third oil pipe 700, and then injects oil into the upper oil cavity 111 through the first oil pipe 500, and simultaneously, the oil extruded by the lower oil cavity 112 is injected into the first oil pipe 500 through the second oil pipe 600 and the third oil pipe 700, and then into the upper oil cavity 111, so that the pressurization effect on the pressurization mechanism is realized through the accumulator 400, and the piston rod 120 generates pressurization to act on various devices such as a stamping die.

Of course, when the accumulator 400 pressurizes the upper oil chamber 111, the driving set 200 keeps synchronous operation, and drives the piston rod 120 to press down, so that the operation of the pressurizing mechanism is reasonable.

In addition, after the pressurization is completed, the second control valve 610 on the second oil pipe 600 is closed, and at the same time, the first control valve 510 on the first oil pipe 500 and the third control valve 710 on the third oil pipe 700 are opened, at this time, the driving set 200 is reversed, and drives the piston rod 120 in the cylinder 110 to move upwards, while the oil in the upper oil chamber 111 is extruded and flows into the second oil pipe 600 through the first oil pipe 500 and the third oil pipe 700, and then flows into the lower oil chamber 112 through the second oil pipe 600, and meanwhile, the oil in the oil tank 300 also flows into the lower oil chamber 112 through the first oil pipe 500, the third oil pipe 700 and the second oil pipe 600 until the piston rod 120 is reset.

Finally, the driving set 200, the energy accumulator 400, the oil tank 300, the first control valve 510, the second control valve 610, the third control valve 710 and the pressure release valve 810 enable the supercharging mechanism to operate reasonably, and the energy accumulator 400 is used for supercharging, so that the whole structure of the supercharging mechanism is simpler.

The accumulator 400 (accumulator) is a prior art, so the model of the accumulator is a hydraulic bladder type accumulator, and the size of the accumulator can be selected according to the actual situation.

Referring to fig. 1 to 3, in order to drive the piston rod 120 to move in the cylinder 110, the driving set 200 in the present embodiment includes a motor 210 and a screw 220, the motor 210 is located at one side of the cylinder 110, the screw 220 is disposed in the cylinder 110, one end of the screw is connected to the motor 210 through a belt 230, and the other end of the screw is connected to the piston rod 120.

In operation, the motor 210 is turned on, the motor 210 can rotate forward or backward, and the belt 230 drives the screw rod 220 to rotate, so that the piston rod 120 connected with the screw rod 220 moves, but in this embodiment, the driving set 200 is not limited to the transmission structure of the motor 210 and the screw rod 220, and a pneumatic structure and a rack-and-pinion structure can be adopted, through which the piston rod 120 can be driven to move up and down.

Finally, the motor 210 in the present embodiment is a servo motor, and the servo motor can control the speed and position accuracy very accurately, so that the piston rod 120 can be positioned more accurately when moving, and the overall use requirement of the supercharging mechanism can be reduced.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. Those skilled in the art can practice the utility model smoothly as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. A servo pressurizing mechanism, characterized in that: the hydraulic cylinder comprises a cylinder body and a piston rod, wherein the piston rod is arranged inside the cylinder body and divides the cylinder body into an upper oil cavity and a lower oil cavity, the driving group is connected with the piston rod and drives the piston rod to move inside the cylinder body, the oil tank is communicated with the upper oil cavity through a first oil pipe, the energy accumulator is communicated with the lower oil cavity through a second oil pipe, and a third oil pipe is communicated between the first oil pipe and the second oil pipe.

2. The servo boost mechanism of claim 1, wherein: and a first control valve is arranged on the first oil pipe.

3. The servo boost mechanism of claim 2, wherein: and a second control valve is arranged on the second oil pipe.

4. A servo boost mechanism according to claim 3 wherein: and a third control valve is arranged on the third oil pipe.

5. The servo boost mechanism of claim 4, wherein: and a pressure relief pipeline is further arranged between the second oil pipe and the oil tank/the first oil pipe.

6. The servo boost mechanism of claim 5, wherein: and a pressure relief valve is arranged on the pressure relief pipeline.

7. The servo boost mechanism of any one of claims 1 to 6, wherein: the driving group comprises a motor and a screw rod, the motor is positioned on one side of the cylinder body, the screw rod is arranged in the cylinder body, one end of the screw rod is connected with the motor through a belt, and the other end of the screw rod is connected with the piston rod.

8. The servo boost mechanism of claim 7, wherein: the motor is a servo motor.