A rotary cutting production process for large sealing gaskets of hydrogen production electrolyzers

Abstract

The application relates to a rotary cutting production process of a large sealing gasket of a hydrogen production electrolytic cell, and belongs to the field of sealing gaskets of electrolytic cells, which comprises the following steps: S1, a gasket blank is made by using a mold; S2, one end of the gasket blank is detachably fixed on a rotating disc, the rotating disc is detachably fixed on a machine tool, and the machine tool drives the rotating disc to rotate; S3, when the rotating disc drives the gasket blank to rotate, the position of a cutter is adjusted according to the designed thickness of a finished gasket, so that the cutter is aligned with the corresponding position of the side wall of the gasket blank; and S4, the cutter of the cutting device is gradually horizontally inserted into the gasket from the side wall of the gasket blank, at this time, the rotating disc drives the gasket blank to keep rotating, so that rotary cutting is formed. The application has the effects of improving the production efficiency of the gasket, improving the thickness tolerance accuracy, and making the thickness tolerance less than 0.04 mm.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sealing gaskets of electrolytic cells, in particular to a rotary cutting production process for large sealing gaskets of hydrogen production electrolytic cells. BACKGROUND

[0002] The sealing gaskets in electrolytic cells are usually used to prevent leakage or penetration of electrolyte in the electrolytic cells. They can be seals made of corrosion-resistant materials to ensure stable operation of the electrolytic cells. Common gasket materials include rubber, polytetrafluoroethylene (PTFE) and the like, which have good chemical resistance and can be used in electrolyte environment for a long time without damage. The gaskets are usually located at the connection parts of the electrolytic cell plates or other possible leakage areas to provide sealing performance.

[0003] Generally, the large sealing gaskets of electrolytic cells are made by ordinary processes such as mold forming and high-temperature sintering.

[0004] According to the related technology in the above, since one mold can only produce one gasket at a time, when large-scale gasket production is carried out, the production efficiency of this production method is low, and the size of the produced gaskets is not standard and the thickness deviation is large. SUMMARY

[0005] In order to improve the production efficiency of the gaskets and improve the thickness tolerance accuracy, so that the thickness tolerance is less than 0.04 mm, the application provides a rotary cutting production process for large sealing gaskets of hydrogen production electrolytic cells.

[0006] The rotary cutting production process for large sealing gaskets of hydrogen production electrolytic cells provided by the application adopts the following technical scheme:

[0007] A rotary cutting production process for large sealing gaskets of hydrogen production electrolytic cells, comprising the following steps:

[0008] S1, a mold is used to make a gasket blank;

[0009] S2, one end of the gasket blank is detachably fixed on a turntable, the turntable is detachably fixed on a machine tool, and the machine tool drives the turntable to rotate:

[0010] Step S2 includes:

[0011] S2.1, the gasket blank is pre-fixed on the turntable, a positioning line is drawn on the turntable according to the size of the gasket, the gasket blank is roughly aligned with the positioning line, and then a fixing block is installed on the turntable to fix the gasket blank;

[0012] S2.2, the concentricity of the gasket blank and the machine tool rotating shaft is calibrated, the edge line of the inner wall of the gasket blank is coincided with the positioning line, and the concentricity of the gasket is calibrated;

[0013] S3, when the turntable drives the gasket blank to rotate, according to the designed thickness of the finished gasket, the position of the cutter is adjusted so that the cutter is aligned with the corresponding position of the side wall of the gasket blank;

[0014] S4, the cutter of the cutting device is gradually inserted into the gasket from the side wall of the gasket blank, at this time the turntable drives the gasket blank to keep rotating to form a rotary cutting;

[0015] S5, after each finished gasket is completed, the relative position of the cutter and the gasket blank is adjusted again, and the next finished gasket is cut and rotated.

[0016] By adopting the above technical scheme, the turntable drives the gasket blank to rotate, the cutter is inserted into the gasket blank from the outside wall of the gasket blank during the rotation of the gasket blank, thereby the finished gasket of the designed thickness is cut and rotated, after each finished gasket is completed, the position of the cutter is adjusted, and another finished gasket is cut, the rotary cutting step is repeated, the gasket blank can be cut and processed into several finished gaskets of the designed thickness, the traditional processing mode of the finished gasket is replaced, a large-thickness mold is directly used to produce the gasket blank, and the rotary cutting process is used, thereby several finished gaskets can be processed, the production efficiency is improved, and the thickness tolerance of the gasket processed by the process is high, and the thickness tolerance is less than 0.04mm.

[0017] Optionally, in step S2, an adjustable inner support clamp is installed on the machine tool to fix the turntable on the machine tool.

[0018] By adopting the above technical scheme, the turntable of different inner diameters can be installed on the machine tool through the adjustable inner support clamp, so that one machine tool can be used to process gaskets of different inner diameters.

[0019] Optionally, in step S2.1, according to the inner diameter length of the gasket blank, the distance between the line marking pen and the machine tool rotating shaft is determined, the line marking pen is in contact with the turntable, the line marking pen can draw a positioning line on the turntable by driving the turntable to rotate by the machine tool.

[0020] By adopting the above technical scheme, the line marking pen draws a circular positioning line on the turntable, the circular positioning line is concentric with the rotating shaft of the machine tool, so that the concentricity between the turntable and the machine tool does not need to be adjusted, the gasket can be aligned with the positioning line to realize the concentricity between the gasket and the machine tool, the calibration of the gasket is facilitated, and the production efficiency is improved.

[0021] Optionally, the fixing blocks are arranged along the contour direction of the gasket blank, the fixing blocks are arranged in two circles, one circle of the fixing blocks is in abutment with the inner side wall of the gasket blank, and the other circle of the fixing blocks is in abutment with the outer side wall of the gasket blank, and the two circles of the fixing blocks are staggered.

[0022] By adopting the above technical scheme, the fixing effect on the gasket blank is enhanced, and the deformation of the gasket blank is reduced to avoid deviation of the finished gasket in the rotary cutting process.

[0023] Optionally, when step S2.2 is performed, the position of the fine adjustment fixing member is adjusted to calibrate the concentricity of the gasket blank.

[0024] By adopting the above technical scheme, the position of the gasket blank can be adjusted by pushing the fixing member, and the gasket blank and the machine tool are concentric when the inner wall line of the gasket blank coincides with the positioning line, which facilitates the calibration of the concentricity of the gasket blank.

[0025] Optionally, the rotating speed of the rotating disc is 0.5-2 revolutions per second.

[0026] Optionally, in steps S4 and S5, the cutting of the cutter and the adjustment of the position of the cutter are performed in a cycle of feed cutting, retreat reset, and forward movement of the cutter by a specified distance according to the size of the gasket to be machined.

[0027] Optionally, the finished gasket is collected after the rotary cutting is completed, and a gasket conveying device is provided. After the finished gasket is separated from the gasket blank, it falls onto the conveying assembly under the action of gravity, and the conveying assembly drives the finished gasket to pass above the cutting device for collection of the finished gasket.

[0028] By adopting the above technical scheme, compared with the traditional manual transfer of gaskets, the transmission mode improves the efficiency of gasket transmission and transfer.

[0029] The application also provides a gasket conveying device for conveying finished gaskets made by the rotary cutting production process of the large gasket for sealing the hydrogen production electrolytic cell.

[0030] A gasket conveying device comprises a support seat, a support rod is arranged on the support seat, a conveyor is arranged on the support rod, one end of the conveyor extends into the inner circle of the gasket blank, the conveyor is arranged obliquely upward, a plurality of push blocks are arranged on the conveyor, the finished gasket falls on the conveyor, and the conveyor drives the push blocks to push the finished gasket to move upward and pass over the cutting device.

[0031] A rotating assembly for driving the support rod to rotate is arranged in the support seat, a hydraulic cylinder is arranged in the support seat, the hydraulic cylinder is connected with the rotating assembly, and the hydraulic cylinder drives the rotating assembly and the support rod to move away from the rotating disc.

[0032] Through the above technical scheme, the finished gasket cut and separated from the gasket blank under the action of gravity and falls on the conveyor, the conveyor belt drives the finished gasket to move obliquely upward, the finished gasket passes over the cutting device from above and reaches the end of the conveyor close to the support rod, the hydraulic cylinder drives the rotating assembly and the support rod to move away from the rotating disc, so that the end of the conveyor away from the support rod is away from the gasket blank, then the rotating assembly drives the rotating rod and the conveyor to rotate, finally the conveyor belt reverses to drive the finished gasket to separate from the conveyor, and finally the finished gasket is conveyed into the collecting box, completing the transfer of the finished gasket, replacing the manual transfer of the finished gasket and improving the production efficiency.

[0033] Optionally, the rotating assembly comprises a moving seat, the moving seat is slidingly arranged in the support seat, the hydraulic cylinder is connected with the support seat, and the moving seat is provided with a motor, and the motor is connected with the support rod.

[0034] Through the above technical scheme, the hydraulic cylinder drives the moving seat to move, the moving seat drives the support rod to move, the support rod drives the conveyor to move away from the rotating disc, and then the motor drives the support rod to rotate, so that the rotation of the conveyor is realized.

[0035] In summary, the present application has at least one of the following beneficial technical effects:

[0036] 1. The rotating disc drives the gasket blank to rotate, the blade horizontally extends into the gasket blank from the outer wall of the gasket blank during rotation, thereby rotating and cutting out finished gaskets of designed thickness, after each finished gasket is machined, the position of the blade is adjusted, another finished gasket is cut, and the rotating and cutting steps are repeated, so that the gasket blank is machined into several finished gaskets meeting the design thickness requirement, the traditional machining method of finished gaskets is replaced, a large-thickness mold is directly used to produce the gasket blank, and the rotating and cutting process is used to machine several finished gaskets, thereby improving the production efficiency, and the thickness tolerance of the gasket machined by this process is high, and the thickness tolerance is less than 0.04mm.

[0037] 2. The marking pen draws a circular positioning line on the rotating disc, and the circular positioning line is concentric with the rotating shaft of the machine tool, so that the rotating disc and the machine tool do not need to be adjusted for concentricity, the gasket can be directly aligned with the positioning line to realize the concentricity of the gasket and the machine tool, the calibration of the gasket is facilitated, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0039] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0040] Explanation of reference signs: 1, support seat; 2, hydraulic cylinder; 3, rotating assembly; 31, moving seat; 32, motor; 4, support rod; 5, conveyor; 51, push block; 6, machine tool; 7, rotating disc; 8, cutting device. DETAILED DESCRIPTION

[0041] The application will be further described below in conjunction with the accompanying drawings. Figures 1-2 The application will be further described below in conjunction with the accompanying drawings.

[0042] The application discloses a rotary cutting production process for large sealing gaskets of hydrogen production electrolytic cells.

[0043] The rotary cutting production process for large sealing gaskets of hydrogen production electrolytic cells comprises the following steps:

[0044] S1, a gasket blank is made by using a mold;

[0045] The thickness of the injection mold used is greater than that of the injection mold used for traditional production, so that the gasket blank processed can be rotary cut into several finished gaskets.

[0046] S2, one end of the gasket blank is detachably fixed on the rotating disc 7, the rotating disc 7 is detachably fixed on the machine tool 6, and the machine tool 6 drives the rotating disc 7 to rotate:

[0047] A movable inner support clamp is installed on the machine tool 6, the rotating disc 7 is an annular rotating disc, the inner support clamp supports the inner wall of the rotating disc 7 to fix the rotating disc 7, and by adjusting the distance between the inner support clamp and the shaft center of the machine tool 6, different rotating discs 7 with different inner diameters can be fixed, so that one machine tool can be used to process gaskets with different inner diameters.

[0048] Step S2 comprises:

[0049] S2.1, the gasket blank is pre-fixed on the rotating disc 7, a positioning line is drawn on the rotating disc 7 according to the size of the gasket, the gasket blank is roughly aligned with the positioning line, and then a fixing block is installed on the rotating disc 7 to fix the gasket blank;

[0050] When drawing the positioning line, the distance between the line drawing marker pen and the rotating shaft of the machine tool 6 is determined according to the inner diameter length of the gasket blank, then the line drawing marker pen is in contact with the rotating disc 7 and the line drawing marker pen is fixed, and when the machine tool 6 drives the rotating disc 7 to rotate, the line drawing marker pen can draw the positioning line on the rotating disc 7:

[0051] The line drawing marker pen draws a circular positioning line on the rotating disc 7, and the circular positioning line is concentric with the rotating shaft of the machine tool 6, so that the concentricity between the rotating disc 7 and the machine tool 6 does not need to be adjusted, the gasket can be directly aligned with the positioning line to realize the concentricity between the gasket and the machine tool 6, the calibration of the gasket is facilitated, and the production efficiency is improved;

[0052] In the embodiment of the present application, the fixing block is a pressing iron, and the pressing iron is slidingly arranged on the rotating disc 7. The pressing irons are arranged along the contour direction of the gasket blank. The pressing irons are arranged in two circles. Adjacent pressing irons in the inner circle and the outer circle are arranged staggeredly. The positions of the two rows of pressing irons on the rotating disc 7 are adjusted. The gasket blank is placed between the two rows of pressing irons and is roughly aligned with the positioning line. Then, the inner circle pressing iron is tightly abutted against the inner wall of the gasket blank, and the outer circle pressing iron is tightly abutted against the outer wall of the gasket blank. Thus, the gasket blank is pre-fixed on the rotating disc 7. The fixing effect of the gasket blank is strengthened, and the deformation of the gasket blank is reduced, so that the deviation of the finished gasket caused by the rotary cutting processing is reduced.

[0053] S2.2, the concentricity of the gasket blank and the rotating shaft of the machine tool 6 is calibrated. The edge line of the inner wall of the gasket blank is coincided with the positioning line, so that the concentricity of the gasket is calibrated.

[0054] According to the distribution of the positioning line, the inner circle pressing iron is pushed. The inner circle pressing iron abuts against the inner wall of the gasket blank, so that the gasket blank is slightly deformed. The edge line of the inner wall of the gasket blank is coincided with the positioning line. Then, the adjacent outer circle pressing iron is loosened. The gasket blank is restored to the deformation. Thus, the fine adjustment of the gasket blank is realized. The concentricity of the gasket blank is calibrated.

[0055] S3, when the rotating disc 7 drives the gasket blank to rotate, the position of the cutter is adjusted according to the design thickness of the finished gasket. The cutter is aligned with the corresponding position of the side wall of the gasket blank.

[0056] S4, the cutter of the cutting device 8 is gradually inserted into the gasket from the horizontal side wall of the gasket blank. At this time, the rotating disc 7 drives the gasket blank to rotate, so that the rotary cutting is formed.

[0057] S5, after each finished gasket is completed, the relative position of the cutter and the gasket blank is adjusted again, and the next finished gasket is rotary cut.

[0058] The cutting of the cutter and the adjustment of the position of the cutter are circularly performed in the processing mode of the feeding cutting, the retreat of the cutter and the forward movement of the cutter by a specified distance according to the size of the processed gasket. The feeding cutting is that the cutter is gradually inserted into the gasket blank from the outer side wall of the gasket blank for cutting. When the cutting is completed, the cutter is retreated, so that the cutter returns to the initial position. Then, the cutter is moved towards the rotating disc 7, so that the cutter is aligned with the next cutting point of the gasket blank. The above operation is repeated again, so that the rotary cutting processing of multiple finished gaskets is completed. The gasket blank is cut and processed into several finished gaskets which meet the design thickness requirement. The processing mode of the traditional finished gasket is replaced. A large thickness mold is directly used to produce the gasket blank. The rotary cutting process is used, so that several finished gaskets can be processed. The production efficiency is improved.

[0059] The principle of the embodiment of the application is that the rotating disc 7 drives the gasket blank to rotate, the blade horizontally extends into the gasket blank from the outer wall of the gasket blank in the rotating process, so that a finished gasket with a designed thickness is cut and removed, after each finished gasket is processed, the position of the blade is adjusted, another finished gasket is cut, and the rotating and cutting steps are repeated, so that the gasket blank is cut and processed into several finished gaskets with a designed thickness, which replaces the traditional processing mode of finished gaskets, a large-thickness mold is directly used to produce the gasket blank, and the rotating and cutting process is used, so that several finished gaskets can be processed, the production efficiency is improved, and the thickness tolerance of the gasket processed by the process is high, and the thickness tolerance is less than 0.04 mm.

[0060] The embodiment of the application also discloses a large gasket conveying device for conveying finished gaskets made by the rotating and cutting production process of the large gasket sealing the hydrogen production electrolytic cell.

[0061] As Figure 1 and Figure 2 The large gasket conveying device comprises a support base 1, a cutting device 8 is located between the support base 1 and the machine tool 6, a hydraulic cylinder 2 is arranged in the support base 1, a rotating assembly 3 is connected to the hydraulic cylinder 2, a support rod 4 is arranged on the rotating assembly 3, the rotating assembly 3 is slidably arranged in the support base 1, the hydraulic cylinder 2 can drive the rotating assembly 3 and the support rod 4 to move along the direction close to or away from the rotating disc 7, the rotating assembly 3 drives the support rod 4 to rotate, the height of the support rod 4 is greater than the height of the cutting device 8, the top of the support rod 4 is fixed with a conveyor 5, the conveyor 5 is in a Z shape, one end of the conveyor 5 away from the support rod 4 extends into the inner ring of the gasket blank, the distance between the part of the conveyor 5 above the cutting device 8 and the cutting device 8 is greater than the outer diameter of the gasket, and a plurality of push blocks 51 are arranged on the conveyor 5.

[0062] The rotating assembly 3 comprises a moving seat 31, the moving seat 31 is slidably arranged in the support base 1, a piston rod of the hydraulic cylinder 2 is connected to the support base 1, a motor 32 is arranged in the support base 1, and a driving shaft of the motor 32 is connected to the support rod 4.

[0063] The finished gasket separated from the gasket blank under the action of gravity and fell onto the conveyor 5, the conveyor belt push block 51 of the conveyor 5 moved, the push block 51 pushed the finished gasket to move obliquely upward, the finished gasket passed above the cutting device 8 and was collected close to the end of the support rod 4 of the conveyor 5, when the finished gasket reached the end of the conveyor 5 connected with the support rod 4, the hydraulic cylinder 2 pushed the moving seat 31 to move, the moving seat 31 drove the support rod 4 to move away from the rotating disc 7, so that the end of the conveyor 5 away from the support rod 4 was away from the gasket blank, so that the end of the conveyor 5 extended from the inner ring of the gasket blank, then the motor 32 drove the support rod 4 to rotate, so that the support rod 4 drove the conveyor 5 to rotate, the orientation of the conveyor 5 was changed, the conveyor 5 was aligned with the collecting box and other related collecting devices, finally the conveying belt of the conveyor 5 reversed to separate the finished gasket from the conveyor 5, finally the finished gasket fell into the collecting box from the conveyor 5, the finished gasket was transferred, the manual transfer of the finished gasket was replaced, and the production efficiency was improved.

[0064] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rotary cutting production process for sealing large gaskets for hydrogen production electrolyzers, characterized by: The method comprises the following steps: S1, using a mold to make a gasket blank; S2, one end of the gasket blank is detachably fixed on a rotating disc (7), the rotating disc (7) is detachably fixed on a machine tool (6), and the machine tool (6) drives the rotating disc (7) to rotate: Step S2 comprises: S2.1, the gasket blank is pre-fixed on the rotating disc (7), a positioning line is drawn on the rotating disc (7) according to the size of the gasket, and the gasket blank is roughly aligned with the positioning line, and then a fixing block is installed on the rotating disc (7) to fix the gasket blank; S2.2, the concentricity of the gasket blank and the rotating shaft of the machine tool (6) is calibrated, and the edge line of the inner wall of the gasket blank is coincided with the positioning line to realize the calibration of the concentricity of the gasket; S3, when the rotating disc (7) drives the gasket blank to rotate, the position of the cutter is adjusted according to the designed thickness of the finished gasket, so that the cutter is aligned with the corresponding position of the side wall of the gasket blank; S4, the cutter of the cutting device (8) is gradually inserted into the gasket from the side wall of the gasket blank to cut the gasket, and at this time the rotating disc (7) drives the gasket blank to rotate to form rotary cutting; S5, after each finished gasket is completed, the relative position of the cutter and the gasket blank is adjusted again, and the next finished gasket is cut and rotated; In step S2, an adjustable inner support clamp is installed on the machine tool (6) to fix the rotating disc (7) on the machine tool (6); In step S2.1, according to the length of the inner diameter of the gasket blank, the distance between the line drawing marker pen and the rotating shaft of the machine tool (6) is determined, the line drawing marker pen is in contact with the rotating disc (7), and the rotating disc (7) is driven to rotate by the machine tool (6), so that the line drawing marker pen can draw a positioning line on the rotating disc (7).

2. The rotary cutting production process for sealing large gaskets for hydrogen-producing electrolyzers according to claim 1, characterized in that: The fixing blocks are arranged along the contour direction of the gasket blank, the fixing blocks are arranged in two circles, one circle of the fixing blocks is in abutment with the inner side wall of the gasket blank, and the other circle of the fixing blocks is in abutment with the outer side wall of the gasket blank, and the two circles of the fixing blocks are staggered.

3. The rotary cutting production process for sealing large gaskets for hydrogen-producing electrolyzers of claim 1, wherein: When step S2.2 is performed, the position of the fixing member is finely adjusted to realize the calibration of the concentricity of the gasket blank.

4. The rotary cutting production process for sealing large gaskets for hydrogen-producing electrolyzers of claim 1, wherein: The rotating speed of the rotating disc (7) is controlled to be 0.5-2 revolutions per second.

5. The rotary cutting production process for sealing large gaskets for hydrogen-producing electrolyzers of claim 1, wherein: In steps S4 and S5, the cutting of the cutter and the adjustment of the position of the cutter are circularly performed by using the processing mode of feed cutting, retreat reset and forward movement of the cutter by a specified distance according to the size of the processed gasket.

6. The rotary cutting production process for sealing large gaskets for hydrogen-producing electrolytic cells according to claim 1, characterized in that: The finished gaskets are collected, the gasket transmission device is arranged, the finished gaskets fall on the transmission assembly under the action of gravity after being separated from the gasket blank, and the transmission assembly drives the finished gaskets to pass above the cutting device (8) to collect the finished gaskets.

7. A sealing large gasket transfer device for the hydrogen production electrolyzer according to any one of claims 1 to 6, characterized in that: The support seat (1) is provided with a support rod (4), the support rod (4) is provided with a conveyor (5), one end of the conveyor (5) extends into the inner circle of the gasket blank, the conveyor (5) is inclined upward, the conveyor (5) is provided with a plurality of push blocks (51), the finished gaskets fall on the conveyor (5), and the conveyor (5) drives the push blocks (51) to push the finished gaskets to move upward to pass the cutting device (8); The support seat (1) is internally provided with a rotating assembly (3) for driving the support rod (4) to rotate, the support seat (1) is internally provided with a hydraulic cylinder (2), the hydraulic cylinder (2) is connected with the rotating assembly (3), and the hydraulic cylinder (2) drives the rotating assembly (3) and the support rod (4) to move away from the rotating disc (7).

8. The hydrogen-producing electrolyzer seal large gasket transfer device of claim 7, wherein: The rotating assembly (3) comprises a moving seat (31) which is slidingly arranged in the support seat (1), the hydraulic cylinder (2) is connected with the support seat (1), the moving seat (31) is internally provided with a motor (32), and the motor (32) is connected with the support rod (4).

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