CN217891975U

CN217891975U - Automatic leveling device of expanded graphite plate

Info

Publication number: CN217891975U
Application number: CN202220227544.1U
Authority: CN
Inventors: 李振; 苑文好; 曹庆立; 徐建军; 黄德双; 甘全全; 戴威
Original assignee: Shanghai Shenli Technology Co Ltd
Current assignee: Shanghai Shenli Technology Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-11-25
Anticipated expiration: 2032-01-27

Abstract

The utility model relates to an automatic leveling device of expanded graphite board, include: the heating device comprises a rack, wherein an upper heating mechanism and a lower heating mechanism are arranged on the rack, and the upper driving mechanism and the lower driving mechanism respectively drive the upper heating mechanism and the lower heating mechanism to lift; a sensor unit for monitoring temperature and pressure between the upper heating mechanism and the lower heating mechanism; and the controller is in communication connection with the upper driving mechanism, the lower driving mechanism, the upper heating mechanism, the lower heating mechanism and the sensor unit. Compared with the prior art, the utility model discloses to put things in good order the orderly expanded graphite board at last heating mechanism and heat in the region between the heating mechanism down, the heating can change the molecular structure of expanded graphite board, eliminates internal stress, goes up actuating mechanism and down actuating mechanism and provides sufficient pressure and just can flatten warpage expanded graphite board, easy operation, the flattening of a pile of expanded graphite board can be carried out simultaneously in the one shot operation, output has been improved greatly, operator's number has been reduced, operator's working strength has been reduced.

Description

Automatic leveling device of expanded graphite plate

Technical Field

The utility model belongs to the technical field of fuel cell processing technique and specifically relates to an automatic leveling device of inflation graphite cake is related to.

Background

The expanded graphite plate is a basic unit of the fuel cell, the main material of the expanded graphite plate is graphite, the expanded graphite plate is solidified and shaped after being solidified, and the expanded graphite plate is warped and has stress inside in the process. Warped expanded graphite plate can not be used, and the expanded graphite plate needs to be leveled according to process requirements, but because the stress inside the expanded graphite plate can not be directly pressurized and leveled, the expanded graphite plate can crack due to direct pressurization and leveling, so that the expanded graphite plate needs to be heated under the pressurized condition, and the expanded graphite plate leveling effect is realized through heating and pressurization for a period of time.

In the existing processing technology, after the expanded graphite plate which is solidified is generally stacked in order, a counterweight is placed above the expanded graphite plate to enable the expanded graphite plate to slowly release stress and then achieve a leveling effect, the full-manual operation is used, the repeatability consistency cannot be guaranteed, the flatness of the expanded graphite plate which cannot meet the technological requirement due to the poor leveling effect can often happen, the expanded graphite plate can also crack, and the expanded graphite plate can be directly scrapped and cannot be used due to cracking.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic flattening device of expanded graphite plates in order to overcome the defects of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

an automatic flattening device of expanded graphite sheet includes:

the heating device comprises a rack, wherein an upper heating mechanism and a lower heating mechanism are arranged on the rack, and the upper driving mechanism and the lower driving mechanism respectively drive the upper heating mechanism and the lower heating mechanism to lift;

a sensor unit for monitoring temperature and pressure between the upper heating mechanism and the lower heating mechanism;

and the controller is in communication connection with the upper driving mechanism, the lower driving mechanism, the upper heating mechanism, the lower heating mechanism and the sensor unit.

Preferably, the rack comprises an upper base, a lower base and a guide shaft, the upper driving mechanism is mounted on the upper base, the lower driving mechanism is mounted on the lower base, two ends of the guide shaft are respectively connected with the upper base and the lower base, through holes corresponding to the guide shaft are formed in the upper heating mechanism and the lower heating mechanism, the upper heating mechanism is driven by the upper driving mechanism to lift along the guide shaft, and the lower heating mechanism is driven by the lower driving mechanism to lift along the guide shaft.

Preferably, the upper heating mechanism is an upper heating pressing plate, the lower heating mechanism is a lower heating pressing plate, the upper heating pressing plate and the lower heating pressing plate are vertically and correspondingly arranged, and the upper heating pressing plate and the lower heating pressing plate are identical in shape and size.

Preferably, resistance wires are arranged in the upper heating pressing plate and the lower heating pressing plate and are controlled by a controller.

Preferably, the sensor unit includes a temperature sensor and a pressure sensor.

Preferably, the controller is a PLC controller and comprises a control cabinet and a display screen, and control keys are arranged on the control cabinet.

Preferably, the upper driving mechanism is a servo motor, and the control precision is high.

Preferably, the lower driving mechanism is a servo motor, and the control precision is high.

Preferably, the bottom of the frame is provided with a roller, so that the position can be conveniently moved.

Preferably, the number of the upper driving mechanisms is at least 1, and force is uniformly applied to the upper heating mechanism.

Preferably, the number of the lower driving mechanisms is at least 1, and the lower driving mechanisms uniformly apply force to the lower heating mechanisms.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) Piling up orderly expanded graphite board and heating in last heating mechanism and the region between the heating mechanism down, the heating can change expanded graphite board's molecular structure, eliminates internal stress, goes up actuating mechanism and provides sufficient pressure with actuating mechanism down and just can flatten warpage expanded graphite board, easy operation, once operation can carry out the flattening of a pile of expanded graphite board simultaneously, has improved output greatly, has reduced operator's number, has reduced operator's working strength.

(2) The upper heating mechanism and the lower heating mechanism move along the guide shaft under the driving of the upper driving mechanism and the lower driving mechanism, so that the upper heating mechanism and the lower heating mechanism can vertically move, and the expanded graphite plate is uniformly pressed.

(3) The lower driving mechanism can be adjusted according to the requirement, so that the height of the lower heating mechanism can be flexibly changed, and the lower heating mechanism is suitable for different production requirements.

Drawings

Fig. 1 is a schematic structural view of the present invention;

reference numerals are as follows: 1. an upper heating mechanism, 2 a lower heating mechanism, 3 an upper driving mechanism, 4, a lower driving mechanism 5, an upper base 6, a lower base 7 and a guide shaft.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment of the present invention is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. Parts are exaggerated in the drawing where appropriate for clarity of illustration.

Example 1:

an automatic flattening device for expanded graphite plates, as shown in fig. 1, comprises:

the heating device comprises a rack, wherein an upper heating mechanism 1 and a lower heating mechanism 2 are installed on the rack, and an upper driving mechanism 3 and a lower driving mechanism 4 respectively drive the upper heating mechanism 1 and the lower heating mechanism 2 to lift; a sensor unit for monitoring the temperature and pressure between the upper heating mechanism 1 and the lower heating mechanism 2; and the controller is in communication connection with the upper driving mechanism 3, the lower driving mechanism 4, the upper heating mechanism 1, the lower heating mechanism 2 and the sensor unit.

The using method of the invention is as follows:

the expanded graphite plate heat treatment device is characterized in that a plurality of expanded graphite plates are placed on a lower heating mechanism 2 after being orderly stacked, an upper driving mechanism 3 drives an upper heating mechanism 1 to descend, a lower driving mechanism 4 drives a lower heating mechanism 2 to ascend, the expanded graphite plates are clamped in the middle to be compressed, the upper heating mechanism 1 and the lower heating mechanism 2 heat, the upper driving mechanism 3 and the lower driving mechanism 4 maintain pressure, after hot pressing, the upper driving mechanism 3 drives the upper heating mechanism 1 to ascend, the lower driving mechanism 4 drives the lower heating mechanism 2 to descend, the expanded graphite plates are taken out, and a next rapid cooling process is carried out.

Wherein, the frame includes base 5, base 6 and guide shaft 7 down, goes up actuating mechanism 3 and installs on last base 5, and lower actuating mechanism 4 is installed on base 6 down, and upper base 5 and base 6 down are connected respectively to the both ends of guide shaft 7, goes up heating mechanism 1 and is equipped with the through-hole that corresponds with guide shaft 7 down on heating mechanism 2 down, goes up heating mechanism 1 and goes up and down along guide shaft 7 under last actuating mechanism 3's the drive, and lower heating mechanism 2 goes up and down along guide shaft 7 under actuating mechanism 4's drive down. The bottom of the rack is also provided with a roller, so that the position of the rack can be conveniently adjusted, and the roller is locked after the rack is moved to a proper position.

The upper heating mechanism 1 is an upper heating pressing plate, the lower heating mechanism 2 is a lower heating pressing plate, resistance wires are arranged in the upper heating pressing plate and the lower heating pressing plate, the resistance wires are controlled by a controller, the upper heating pressing plate and the lower heating pressing plate vertically correspond to each other, the shape and the size are the same, the size of the resistance wires can be set according to the size of an expanded graphite plate to be processed, and heating and pressurizing of the expanded graphite plate can be achieved. Through holes are formed in the two sides of the upper heating pressing plate and the lower heating pressing plate, and the guide shaft 7 penetrates through the through holes to ensure that the upper heating pressing plate and the lower heating pressing plate can vertically lift.

The sensor unit comprises a temperature sensor and a pressure sensor, the temperature and the pressure between the upper heating mechanism 1 and the lower heating mechanism 2 can be monitored, the controller can flexibly control the upper heating mechanism 1 and the lower heating mechanism 2 to change the temperature according to monitored data, and acting force of the upper driving mechanism 3 and the lower driving mechanism 4 is adjusted to change the pressure.

The controller is a PLC controller and comprises a control cabinet and a display screen, wherein a control key is arranged on the control cabinet, and an emergency stop switch, a reset switch and the like can be arranged.

The upper driving mechanism 3 and the lower driving mechanism 4 are servo motors, and the control precision is high.

The number of the upper driving mechanism 3 is at least 1, the acting force is uniformly applied to the upper heating mechanism 1, the number of the lower driving mechanism 4 is at least 1, and the acting force is uniformly applied to the lower heating mechanism 2, so that the expanded graphite plate between the upper heating mechanism 1 and the lower heating mechanism 2 is uniformly stressed.

In one particular embodiment:

1. stacking 200 expanded graphite plates on a tool;

2. placing the tool on a lower heating pressing plate;

3. pressing a start button, heating the upper heating pressing plate and the lower heating pressing plate to 300-400 ℃, and pressurizing to 80000-85000N;

4. and timing by a timer, finishing hot pressing after timing for 5 hours, and lifting the upper and lower heating pressing plates.

5. Taking out the tool and entering a quenching process.

The upper heating plate and the lower heating plate have heating functions, can be uniformly heated up and down, a region with the high temperature of 300-400 ℃ is formed by heating the upper heating pressing plate and the lower heating pressing plate, the orderly expanded graphite plate is stacked and heated in the region, the molecular structure of the expanded graphite plate can be changed by heating, the internal stress is eliminated, and the warped expanded graphite plate can be flattened by applying enough pressure. The method is simple to operate, can level a pile of expanded graphite plates at the same time by one-time operation, greatly improves the yield, reduces the number of operators and reduces the working strength of the operators.

Because go up the hot plate and can all freely go up and down with hot plate down, consequently go up the hot plate and down the interval adjustment range between the hot plate bigger, can operate the expanded graphite board of different quantity at every turn, can deal with different production needs. In addition, the height of lower hot plate can be adjusted in a flexible way, consequently, can be with hot plate lift to suitable height down to conveniently place the orderly inflation graphite cake of putting things in good order down on the hot plate, the operation is more laborsaving, moreover, no matter the graphite cake is placed to the manual work or the manipulator is stacked, can both adjust down the hot plate to suitable height, the different production lines of ability adaptation.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an automatic leveling device of inflation graphite cake which characterized in that includes:

2. The automatic leveling device for expanded graphite plates according to claim 1, wherein the frame comprises an upper base, a lower base and a guide shaft, the upper driving mechanism is mounted on the upper base, the lower driving mechanism is mounted on the lower base, two ends of the guide shaft are respectively connected with the upper base and the lower base, through holes corresponding to the guide shaft are formed in the upper heating mechanism and the lower heating mechanism, the upper heating mechanism is driven by the upper driving mechanism to lift along the guide shaft, and the lower heating mechanism is driven by the lower driving mechanism to lift along the guide shaft.

3. The automatic leveling device for the expanded graphite plates as claimed in claim 1, wherein the upper heating mechanism is an upper heating platen, the lower heating mechanism is a lower heating platen, and the upper heating platen and the lower heating platen are vertically arranged in a corresponding manner and have the same shape and size.

4. The automatic leveling device for the expanded graphite plate as claimed in claim 1, wherein resistance wires are arranged in the upper heating pressing plate and the lower heating pressing plate, and the resistance wires are controlled by a controller.

5. The automatic flattening device of an expanded graphite sheet according to claim 1, characterized in that the sensor unit includes a temperature sensor and a pressure sensor.

6. The automatic flattening device of expanded graphite plates according to claim 1, characterized in that the controller is a PLC controller and comprises a control cabinet and a display screen, and a control key is arranged on the control cabinet.

7. The apparatus of claim 1, wherein the upper driving mechanism is a servo motor.

8. The automatic flattening device of the expanded graphite sheet according to claim 1, wherein the lower driving mechanism is a servo motor.

9. The apparatus of claim 1, wherein the number of said upper driving mechanisms is at least 1.

10. The apparatus of claim 1, wherein the number of said lower driving mechanisms is at least 1.