A pre-inspection fuel cell graphite bipolar plate slicing device

Abstract

The application discloses a fuel cell graphite bipolar plate slicing device with pre-inspection, and relates to the field of graphene slicing equipment. The fuel cell graphite bipolar plate slicing device with pre-inspection is characterized in that a pre-inspection mechanism is connected to the direction of a discharging conveyor roller machine from a discharging port of a table plate. The pre-inspection mechanism comprises a pre-inspection main support and a quality detection plate. The quality detection plate is connected to the pre-inspection main support through a hinge near one end of the discharging port of the table plate. The other end of the quality detection plate is close to the discharging conveyor roller machine. The bottom surface of the quality detection plate is connected to a torsion spring. The other supporting end of the torsion spring is connected to the pre-inspection main support. When in a non-pre-inspection working position, the height of the quality detection plate gradually increases away from the slicing workbench. The application provides that the graphite slice with a quality lower than the standard range is directly discarded after being subjected to pre-inspection before entering a polishing process.

Description

TECHNICAL FIELD

[0001] The application relates to the field of graphene slicing devices, in particular to a fuel cell graphite bipolar plate slicing device with pre-inspection. BACKGROUND

[0002] In response to energy sustainable development and carbon neutralization indicators, lithium batteries and fuel cells in the field of new energy are rapidly developing and being put into use, especially at the present time when the development of lithium batteries encounters bottlenecks, fuel cells are widely favored and researched as another direction, in the production of fuel cells, graphite sheets are important components, and polishing is also an important link in the production process of graphite sheets. At present, the thickness and quality of the polished high-precision graphite slice need to be inspected by manual inspection, and the unqualified graphite slice will be scrapped. Due to the batch flow production, the specification of the graphite block used for production is certain, and due to the certain thickness of the graphite slice, the quality of the graphite slice after cutting is consistent or within the standard range, but the general precision of the slicing machine is not high, and if the quality of the graphite slice is lower than the standard range during slicing, the graphite slice is not discovered by the workers and enters the polishing link, and will inevitably become waste, so we want to carry out a pre-inspection before entering the polishing process, and directly scrap the graphite slice with a quality lower than the standard range, thereby saving unnecessary polishing work. SUMMARY

[0003] The application provides a fuel cell graphite bipolar plate slicing device with pre-inspection, which carries out a pre-inspection before entering the polishing process, directly scraps the graphite slice with a quality lower than the standard range, and saves unnecessary polishing work.

[0004] The above technical purpose of the application is realized through the following technical scheme: a fuel cell graphite bipolar plate slicing device with pre-inspection, which comprises a feeding conveying roller machine, a slicing workbench, and a discharging conveying roller machine, the slicing workbench is provided with a limiting plate in the feeding direction, the limiting plate is connected with a pushing plate capable of reciprocating towards the discharging conveying roller machine, the pushing plate is inserted into a limiting groove of a table plate, the pushing plate is connected with a discharging port of the table plate at a pushing limit position, the discharging port of the table plate is connected with a pre-inspection mechanism in the direction of the discharging conveying roller machine, the pre-inspection mechanism comprises a pre-inspection main support and a quality detection plate, one end of the quality detection plate close to the discharging port of the table plate is connected with the pre-inspection main support through a hinge, the other end of the quality detection plate close to the discharging conveying roller machine, the bottom surface of the quality detection plate is fixedly connected with a torsion spring, the other supporting end of the torsion spring is connected with the pre-inspection main support, and the height of the quality detection plate gradually increases away from the slicing workbench in a non-pre-inspection working position.

[0005] As preferred, the pre-inspection subject support comprises a support table, a slice connecting strip is provided on the support table protruding towards the slice workbench, a support plate is connected to the same side of the support table as the limiting plate, the support plate is connected to a rotating buffer plate via a shaft, the rotating radius of the rotating buffer plate is smaller than the length of the mass detection plate, and the side of the rotating buffer plate facing the slice workbench is in the same plane as the discharge port of the table plate when the rotating buffer plate is in a vertical state.

[0006] As preferred, the rotating buffer plate comprises a shaft connecting part and a rotating resistance plate connected to each other, the shaft connecting part is connected to the support plate via a shaft, the rotating resistance plate has a downwardly open air guide groove, the air guide groove is provided with an air guide hole on the side wall away from the slice workbench, and the air guide hole is arranged obliquely downward.

[0007] As preferred, the slice connecting strip is provided with an inclined recess towards the slice connecting strip, the depth of the inclined recess increases with the decrease of the height, and a recycling slide is arranged below the discharge conveying roller machine.

[0008] As preferred, the discharge conveying roller machine comprises a transition plate protruding towards the pre-inspection mechanism, the support plate is provided with an inwardly recessed identification groove at the connection position with the transition plate, the transition plate is connected to a rotating gear on the side away from the support plate, and the rotating gear is connected to the pushing plate via a transition mechanism.

[0009] As preferred, the transition mechanism comprises a first belt, a transition belt and a second belt, one end of the first belt is connected to the rotating gear, the other end of the first belt is connected to one end of the transition belt, the other end of the transition belt is connected to the second belt, and the pushing plate comprises a pushing part and a connecting rod, the connecting rod passes through the limiting groove of the table plate downwards and is connected to the second belt via a connecting block.

[0010] As preferred, the movement distance of the second belt following the rotation of the rotating gear driven by one tooth of the rotating gear is equal to the maximum thickness of the slice connecting strip.

[0011] As preferred, the transition plate is provided with a flexible clamping member, the flexible clamping member is connected to the rotating gear, and the end of the rotating shaft of the rotating gear is fixedly connected to a control wrench.

[0012] As preferred, the upper surface of the transition plate is a horizontal plane, and the thickness of the transition plate decreases as it is closer to the mass detection plate.

[0013] As preferred, the recycling slide comprises a limiting side plate and a bottom plate, the bottom plate has a plurality of holes, a damping sheet is connected to each hole via a shaft, the lower end of each damping sheet is connected to a mounting plate, the mounting plate is connected to the mass detection plate via an L-shaped connecting piece, and an inclined blade part is arranged on the top of the damping sheet.

[0014] In summary, the present application has the following beneficial effects.

[0015] 1. By torsional spring and mass detection plate, the quality of graphite slice falling on the mass detection plate is detected, and whether the quality of graphite slice is too small is measured. When the quality of graphite slice is too small, the thickness of graphite slice does not meet the standard, and the graphite slice is directly discarded, thereby saving the subsequent polishing step.

[0016] 2. The rotating buffer plate is designed to buffer the falling of graphite slice, eliminate the influence of gravity acceleration on quality detection, and protect the falling of graphite slice through the rotating buffer plate, so as to prevent the graphite slice from being broken by impact due to excessive falling speed affected by gravity acceleration.

[0017] 3. Through the gear and transition mechanism, the sustainable cutting is controlled, the gear and belt are transmitted to control the movement of the pushing plate, the position of the graphite block is changed, and the manual pushing is reduced.

[0018] 4. The torsional spring is selected, and when the graphite slice is too heavy, the graphite slice can be recycled through the recycling slide for further cutting.

[0019] 5. The damping sheet with blade part and array arrangement is connected with the mounting plate, the mounting plate is fixed with the L-shaped connecting piece, when the mass of graphite slice is larger, the L-shaped connecting piece moves downward for a longer distance, the damping sheet is connected with the hole through the shaft, and the angle of the damping sheet is changed, thereby changing the angle of the blade part, so that the further grinding of the graphite slice by the blade part is changed, and the graphite slice after the recycling slide reaches the qualified standard. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a perspective view of a pre-qualification fuel cell graphite bipolar plate slicing device.

[0022] Figure 2 It is a front view of a pre-qualification fuel cell graphite bipolar plate slicing device.

[0023] Figure 3 It is Figure 1 The detail enlargement of A in the middle.

[0024] Figure 4 It is Figure 1 The detail enlargement of B in the middle.

[0025] Figure 5 It is a bottom view of a pre-inspection fuel cell graphite bipolar plate slicing device.

[0026] Figure 6 It is a sectional view of a pre-inspection fuel cell graphite bipolar plate slicing device in a pre-inspection state of a graphite slice heavier than a specification.

[0027] Figure 7 It is a structural schematic view of a recycling slide and a quality detection plate in a pre-inspection fuel cell graphite bipolar plate slicing device.

[0028] Figure 8 It is a sectional view of a rotating buffer plate in a pre-inspection fuel cell graphite bipolar plate slicing device.

[0029] In the figure: 1, feeding conveying roller machine, 2, slicing workbench, 3, discharging conveying roller machine, 4, limiting plate, 5, pushing plate, 6, table limiting groove, 7, table discharging port, 8, pre-inspection main support, 9, quality detection plate, 10, torsion spring, 11, slicing connecting strip, 12, hinge, 13, supporting table, 14, supporting plate, 15, rotating buffer plate, 16, inclined recess, 17, recycling slide, 18, transition plate, 19, rotating gear, 20, first belt, 21 transition belt, 22, pushing part, 23, connecting rod, 24, flexible clamping part, 25, control wrench, 26, second belt, 27, identification groove, 28, connecting block, 29, limiting side plate, 30, bottom plate, 31, damping sheet, 32, mounting plate, 33, L-shaped connecting part, 34, knife edge, 35, limiting plate, 36, limiting groove, 37, shaft connecting part, 38, rotating stop plate, 39, air guide groove, 40, air guide hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely explained below in combination with the drawings.

[0031] Example One

[0032] As Figures 1 to 8As shown, a pre-inspection fuel cell graphite bipolar plate slicing device includes a feeding conveying roller machine 1, a slicing workbench 2, and a discharging conveying roller machine 3. The slicing workbench 2 is provided with a limiting plate 4 that is butted against the feeding conveying roller machine 1 in the feeding direction. The limiting plate 4 is connected with a pushing plate 5 that can reciprocate towards the discharging conveying roller machine 3. The pushing plate 5 is inserted into a limiting groove 6 of a table plate, and the pushing plate 5 is connected with a table plate discharging port 7 at the pushing limit position. The table plate discharging port 7 is connected with a pre-inspection mechanism towards the discharging conveying roller machine 3. The pre-inspection mechanism includes a pre-inspection main support 8 and a quality detection plate 9. The quality detection plate 9 is connected with the pre-inspection main support 8 through a hinge 12 at one end close to the table plate discharging port 7, and is arranged close to the discharging conveying roller machine 3 at the other end. The bottom surface of the quality detection plate 9 is fixedly connected with a torsion spring 10, and the other supporting end of the torsion spring 10 is connected with the pre-inspection main support 8. In the non-pre-inspection working position, the quality detection plate 9 is lifted up relative to the slicing workbench 2 under the action of the torsion spring 10. After the slicing workbench 2 completes the slicing process, the graphite slice is separated from the graphite block main body and falls to the quality detection plate 9 under the action of gravity. As long as the torsion parameter of the torsion spring 10 is controlled well, when the quality of the graphite slice is within the qualified standard, the quality detection plate 9 is flush with a transition plate 18, and at this time, the qualified graphite slice can be visually displayed, and can be transferred to the transition plate 18 through a negative pressure suction device, and then the qualified graphite slice is transported to a polishing machine for polishing operation through the discharging conveying roller machine 3.

[0033] The pre-inspection main support 8 includes a supporting table surface 13, and the supporting table surface 13 is provided with a slicing connecting strip 11 that protrudes upwards at the connecting position with the slicing workbench 2. The top surface of the slicing connecting strip 11 has a width that is consistent with the width of the graphene slice. The supporting table surface 13 is connected with a supporting plate 14 on the same side of the limiting plate 4. A rotating buffer plate 15 is pivotally connected to the supporting plate 14. The length of the rotating buffer plate 15 is less than the length of the quality detection plate 9. The rotating buffer plate 15 blocks the falling process of the graphene slice without hindering the graphene slice to complete the entire falling process. The side of the rotating buffer plate 15 that faces the slicing workbench 2 is in the same plane Y as the table plate discharging port 7 in the vertical state. After the cutting knife completes the cutting work, the graphene slice rotates and falls under the action of gravity. The graphene slice is hindered by the rotating buffer plate 15 and falls slowly because the rotating buffer plate 15 is in contact with the graphene slice. Figure 8As shown, the rotating buffer plate 15 includes a shaft connection 37 and a rotating stop plate 38. The rotating stop plate 38 is connected to the shaft connection 37. The rotating stop plate 37 has a downwardly guiding air channel 39. The air channel 39 has an air guide hole 40 on its side wall away from the slicing table 2. The air guide hole 40 is inclined downward. When the rotating buffer plate 15 is performing a rotating buffering task, the wind enters the airflow path C as shown by the arrow from the air guide hole 40. It has a counterforce component given by the wind in the direction of graphite slice falling, which plays a wind resistance role on the rotating buffer plate 15 in the opposite direction of graphite slice falling. When the rotating buffer plate 15 returns to its original position after completing its rotation buffering task, air enters through the air guide hole 4 along path A, rushes through the air guide hole 40 to the other wall of the air guide groove 39, moves downward along the air guide groove 39, and exits from the opening of the air guide groove 39, flushing the discharge port 7 of the table and blowing away the graphite dust cut off during cutting. This cleans the slicing worktable 2, ensuring continuous high-precision cutting operations in the future. Two hinges 12 are respectively connected to both ends of the slicing connecting strip 11. The connection points of the hinges 12 are not located in the area through which the graphene slice rotates and falls. When the graphene slice is cut from the graphene raw material block and flips due to gravity, since the hinges 12 are not within the path area of ​​the graphene slice's flipping, they do not obstruct the graphene slice's rotation and falling process.

[0034] The discharge conveyor roller 3 includes a transition plate 18 protruding towards the pre-inspection mechanism. A gap exists between the transition plate 18 and the quality inspection plate 9. This gap is used to distinguish overweight graphite slices during pre-inspection. To avoid hindering the collection of overweight graphite slices, the upper surface of the transition plate 18 is horizontal. The transition plate 18 becomes thinner closer to the quality inspection plate 9. The slice connecting strip 11 has an inclined recess 16. Figure 6 As shown, to facilitate the differentiation of excessively heavy graphite slices during pre-quality inspection, the torque parameter of the torsion spring 10 is selected. Simultaneously, the outer diameter of the torsion spring 10 is chosen to be smaller than the distance from the bottom surface of the quality inspection plate 9 to the pre-quality inspection main support 8. This allows the excessively heavy graphite slices to slide down from the quality inspection plate 9 into the recovery chute 17 below the discharge conveyor roller 3. The recovery chute 17 has an external collection frame (not shown in the attached diagram). This collection frame is used to collect graphene slices that have been found to be excessively heavy after pre-quality inspection. Graphene slices weighing more than 1.2 times the standard weight are generally considered excessively thick and can be recut for later use.

[0035] like Figure 7As shown, the recovery chute 17 includes a limiting side plate 29 and a bottom plate 30, the bottom plate 30 has a plurality of holes, the holes are axially connected with damping pieces 31, the lower ends of the damping pieces 31 are connected with a mounting plate 32, the mounting plate 32 is connected with the mass detection plate 9 through an L-shaped connecting piece 33, the top of the damping pieces 31 is provided with an inclined blade part 34. The damping pieces 31 with the blade part 34 and arranged in an array are connected with the mounting plate 32, the mounting plate 32 is axially connected with the L-shaped connecting piece 33, and the bottom plate 30 is provided with a limiting plate 35 below, the limiting plate 35 is provided with a limiting groove 36, and the mounting plate 32 is slidingly connected in the limiting groove 36. When the mass of the graphite slice is greater, the L-shaped connecting piece 33 moves downward by a greater distance, the damping pieces 31 axially connected in the holes change the angle, the angle of the blade part 34 is changed, and the further grinding of the graphite slice by the blade part 34 is changed, so that the graphite slice after passing through the recovery chute 17 reaches the qualified standard.

[0036] It is particularly pointed out that the damping pieces 31 are axially connected with the mounting plate 32, and can rotate relative to the connecting shaft.

[0037] At the same time, the hole needs to be larger than the area of the region through which the damping piece 31 rotates, so as to smoothly drop the ground waste from the hole, and at the same time provide an effective movement area for the damping piece 31.

[0038] The connecting part of the supporting plate 14 and the transition plate 18 is provided with an inwardly recessed identification groove 27, which is used to clearly show whether it belongs to the qualified range, and the operator can obtain the result by observing with eyes.

[0039] In order to reduce the human participation and reduce the operation station, the transition plate 18 is connected with the rotating gear 19 away from the side of the support plate 14, and the rotating gear 19 is connected with the pushing plate 5 through a transition mechanism. The rotating gear 19 is connected with one end of the first belt 20 on the same shaft, when the rotating gear 19 rotates, the first belt 20 rotates, the transition belt 21 connected with the other end of the first belt 20 on the same shaft rotates with the first belt 20, the other end of the transition belt 21 and one end of the second belt 26 are connected on the same shaft, the transition belt 21 rotates to drive the second belt 26 to rotate, and the pushing plate 5 fixed on the second belt 26 rotates with the second belt 26, so that the pushing plate 5 moves to push the graphene raw material block. In particular, the rotating gear 19 rotates one tooth to drive the second belt 26 to rotate, and the movement distance of the second belt 26 is equal to the maximum thickness of the slice connecting strip 11. Since the maximum thickness of the slice connecting strip 11 is the thickness of the graphite slice in theory, the rotating gear 19 is set to rotate one tooth to make the pushing plate 5 advance in the recommended direction by the thickness of the graphite slice. In this way, the operator only needs to rotate the control wrench 25 to make the rotating gear rotate one tooth, so as to complete the next graphene raw material pushing work. The two operation stations, i.e. one pushing station and one pre-inspection station, are reduced to one operation station. In order to better control the operator to rotate one tooth, the flexible clamping piece 24 is arranged on the transition plate 18, the flexible clamping piece 24 is connected with the rotating gear 19, and the control wrench 25 is fixed on the end of the rotating shaft of the rotating gear 19. The control wrench 25 rotates downwardly and interacts with the rotating gear 19 due to the flexible clamping piece 24, and stops after rotating one tooth. The rotating radii of the first belt 20, the transition belt 21 and the second belt 26 are set in a proportional relationship, and the rotating radii are set in a proportional relationship with the rotating gear 19, so that the rotating gear 19 rotates one tooth to finally cause the second belt 26 to rotate by a movement distance equal to the maximum thickness of the slice connecting strip 11. The pushing plate 5 moves in the discharging direction by a distance of one qualified graphite slice thickness after the rotating gear 19 rotates one tooth.

[0040] In the description of the present application, it should be understood that the terms "front and back", "left and right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0041] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0042] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements that can be easily thought of by those skilled in the art under the technical hints of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A pre-inspection fuel cell graphite bipolar plate slicing device, comprising a feeding conveying roller machine (1), a slicing workbench (2), and a discharging conveying roller machine (3), the slicing workbench (2) is provided with a limiting plate (4) in the feeding direction to butt against the feeding conveying roller machine (1), characterized in that, The limiting plate (4) end is connected with the push plate (5) capable of reciprocating to the direction of the discharge conveying roller machine (3), the push plate (5) is inserted in the table plate limiting groove (6), the push plate (5) is connected with the table plate discharge port (7) when reaching the limit position, the table plate discharge port (7) is connected with the pre-inspection mechanism in the direction of the discharge conveying roller machine (3), the pre-inspection mechanism includes a pre-inspection main support (8) and a quality detection plate (9), one end of the quality detection plate (9) near the table plate discharge port (7) is connected with the pre-inspection main support (8) through a hinge (12), the other end of the quality detection plate (9) near the discharge conveying roller machine (3) is connected with the pre-inspection main support (8) through a hinge (12), the bottom surface of the quality detection plate (9) is fixedly connected with a torsion spring (10), the other supporting end of the torsion spring (10) is connected with the pre-inspection main support (8), and the height of the quality detection plate (9) is gradually increased away from the slicing workbench (2) in the non-pre-inspection working position; The pre-inspection main support (8) includes a support table (13), the support table (13) is connected with the slicing workbench (2), a slicing connection strip (11) is protruded on the connection part of the support table (13) and the slicing workbench (2), the support table (13) is connected with a support plate (14) on the same side of the limiting plate (4), the support plate (14) is rotatably connected with a rotating buffer plate (15), the rotating radius of the rotating buffer plate (15) is smaller than the length of the quality detection plate (9), and the side of the rotating buffer plate (15) facing the slicing workbench (2) is in the same plane as the table plate discharge port (7) in the vertical state; The rotating buffer plate (15) includes an axle connecting part (37) and a rotating resistance plate (38), the axle connecting part (37) is rotatably connected with the support plate (14), the rotating resistance plate (38) has a downward air guide groove (39), the air guide hole (40) is arranged on the side wall away from the slicing workbench (2) of the air guide groove (39), and the air guide hole (40) is arranged in an inclined downward manner.

2. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as described in claim 1, wherein, The slicing connection strip (11) is provided with an inclined recess (16) facing the slicing connection strip (11), the depth of the inclined recess (16) is deepened with the decrease of the height, and a recycling slide (17) is arranged below the discharge conveying roller machine (3).

3. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as defined in claim 2 wherein, The discharge conveying roller machine (3) includes a transition plate (18) protruding to the pre-inspection mechanism, the support plate (14) is provided with an identification groove (27) recessed inward at the connection part of the support plate (14) and the transition plate (18), the transition plate (18) is connected with a rotating gear (19) on the side away from the support plate (14), and the rotating gear (19) is connected with the push plate (5) through a transition mechanism.

4. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as defined in claim 3 wherein, The transition mechanism comprises a first belt (20), a transition belt (21) and a second belt (26), one end of the first belt (20) is connected with the rotating gear (19), the other end is connected with one end of the transition belt (21), the other end of the transition belt (21) is connected with the second belt (26), the pushing plate (5) comprises a pushing part (22) and a connecting rod (23), the connecting rod (23) passes through the table plate limiting groove (6) downwardly and is connected with the second belt (26) through a connecting block (28).

5. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as defined in claim 4 wherein, The rotating gear (19) drives the second belt (26) to rotate by a tooth belt, and the rotating distance of the second belt (26) is equal to the maximum thickness of the slice connecting strip (11).

6. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as defined in claim 3 wherein, The transition plate (18) is provided with a flexible clamping part (24), the flexible clamping part (24) is connected with the rotating gear (19), and the end of the rotating shaft of the rotating gear (19) is fixedly connected with a control wrench (25).

7. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as defined in claim 3 wherein, The upper surface of the transition plate (18) is a horizontal plane, and the closer the transition plate (18) is to the quality detection plate (9), the thinner the thickness is.

8. A pre-qualifying fuel cell graphite bipolar plate sheeting apparatus as defined in claim 2 wherein, The recycling slide (17) comprises a limiting side plate (29) and a bottom plate (30), the bottom plate (30) is provided with a plurality of holes, the holes are axially connected with damping sheets (31), the lower ends of the damping sheets (31) are connected with mounting plates (32), the mounting plates (32) are connected with the quality detection plate (9) through L-shaped connecting pieces (33), and the top of the damping sheet (31) is provided with an inclined blade part (34).

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