A bipolar plate batch processing and forming device

Abstract

The present invention provides a bipolar plate batch processing and forming device, which belongs to the technical field of bipolar plate processing, and includes a bottom plate, a containing assembly, a heating and pressing roller, a winding roller, a first driving assembly and a second driving assembly. The upper edge of the bottom plate is fixed with a top plate by a plurality of columns. The containing assembly is arranged on the upper part of the bottom plate, and is used to provide support for a plurality of polyethylene plates. The heating and pressing roller and the winding roller are arranged above the containing assembly, and the winding roller is used to wind graphite felt. The first driving assembly is installed at the bottom of the top plate, and is used to drive the heating and pressing roller and the winding roller to move along the top of the containing assembly. Compared with the prior art, the embodiment of the present invention can realize continuous automatic hot pressing of a plurality of polyethylene plates and graphite felt when processing and forming bipolar plates, and has the advantages of good bipolar plate processing and forming effect and high processing and forming efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of bipolar plate processing, and in particular relates to a bipolar plate batch processing and forming device. Background Art

[0002] As one of the key components of all-vanadium liquid flow batteries, bipolar plates connect the positive and negative electrodes of different single cells and conduct the internal circuit of the battery. They are required to have good conductivity and mechanical strength.

[0003] Existing all-vanadium liquid flow battery bipolar plates are usually made of polyethylene plates and graphite felt through hot pressing. During the specific molding process, the polyethylene plates and graphite felt need to be placed together in a molding box, and then the polyethylene plates and graphite felt are pressed together with the help of a hot pressing mold. However, the processing and molding method of this bipolar plate is relatively traditional. Each hot pressing action of the hot pressing mold can only produce a single bipolar plate, which leads to a relatively low processing and molding efficiency of the bipolar plate, which urgently needs to be improved. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a bipolar plate batch processing and molding device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A bipolar plate batch processing and forming device comprises a bottom plate, a containing assembly, a heating and pressing roller, a winding roller, a first driving assembly and a second driving assembly.

[0007] The upper edge of the bottom plate is fixed with a top plate through a plurality of columns.

[0008] The containing assembly is arranged on the upper part of the bottom plate, and is used to provide support for a plurality of polyethylene plates.

[0009] The heating and pressing roller and the winding roller are arranged above the containing assembly, and the winding roller is used to wind the graphite felt.

[0010] The first driving assembly is installed at the bottom of the top plate, and is used to drive the heating and pressing roller and the winding roller to move above the containing assembly.

[0011] The second driving component is arranged on the side of the heating pressure roller and the winding roller. When the heating pressure roller and the winding roller move, the second driving component is used to drive the heating pressure roller and the winding roller to rotate. When the winding roller rotates, the graphite felt is unrolled onto the upper surface of several polyethylene plates. When the heating pressure roller rotates, the graphite felt unrolled onto the upper surface of several polyethylene plates is heated and rolled.

[0012] As a further improvement of the present invention: the first driving assembly includes a motor, a screw rod, a mounting plate and a slider,

[0013] The motor is fixedly mounted on the bottom of the top plate, one end of the screw rod is connected to the output end of the motor, and the other end passes through the slider and is threadedly matched with the slider, the mounting plate is fixedly arranged at the bottom of the slider, and the first bracket plate and the second bracket plate are fixedly arranged at the bottom of the mounting plate.

[0014] A first rotating shaft is fixedly disposed at the end of the heating roller, and one end of the first rotating shaft away from the heating roller is rotatably connected to the second bracket plate.

[0015] A second rotating shaft is fixedly disposed at the end of the winding roller, and one end of the second rotating shaft away from the winding roller is rotatably connected to the first bracket plate. The winding roller is disposed at a position obliquely above the heating and pressing roller.

[0016] As a further improvement of the present invention: a guide rail is fixedly provided at the bottom of the top plate, and the sliding block is slidably matched with the guide rail.

[0017] As a further improvement of the present invention: the second driving assembly includes a driving rod, a rack, a bevel gear, a first gear and a second gear,

[0018] The first gear is fixedly arranged outside the second rotating shaft, the second gear is fixedly arranged outside the first rotating shaft, the driving rod is arranged between the first gear and the second gear, the driving rod is horizontally distributed, the end of the driving rod is fixedly connected to the bottom of the top plate through a supporting rod, the rack is fixedly arranged at the bottom of the driving rod and meshes with the second gear,

[0019] The beveled gear plates are provided with several groups, and the several beveled gear plates are hingedly arranged on the upper part of the driving rod and distributed in sequence. One side of each group of beveled gear plates is connected to the driving rod through a group of elastic parts, and the several beveled gear plates can be unidirectionally meshed with the first gear.

[0020] As a further improvement of the present invention: a cutter is fixedly provided on the side wall of the heating roller along the length direction.

[0021] As a further improvement of the present invention: the circumferential side wall of the heating roller is covered with an electric heating plate.

[0022] As a further improvement of the present invention: the holding assembly includes a holding belt and a belt roller,

[0023] The belt rollers are provided with two groups, and the two groups of belt rollers are rotatably arranged on the left and right sides of the upper part of the bottom plate. The two ends of the containing belt are respectively sleeved on the outside of the two groups of belt rollers, and one group of belt rollers is controlled to rotate by an external motor. A support plate is fixedly arranged on the upper part of the bottom plate, and the support plate extends to the inner side of the containing belt to provide support for the containing belt.

[0024] As a further improvement of the present invention: a plurality of limiting grooves matching the polyethylene plate are provided on the outer surface of the containing belt.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In an embodiment of the present invention, when processing and forming the bipolar plate, a plurality of polyethylene plates can be placed on the upper part of the containing assembly and arranged in sequence on the upper part of the containing assembly, and then the first driving assembly drives the heating pressure roller and the winding roller to move along the upper part of the containing assembly, and at the same time, the second driving assembly is used to drive the heating pressure roller and the winding roller to rotate, and when the winding roller rotates, the wound graphite felt is unwound onto the upper surface of the polyethylene plate, and when the heating pressure roller rotates, the graphite felt unwound onto the upper surface of the plurality of polyethylene plates is heated and rolled, so that the graphite felt and the plurality of polyethylene plates are heat-fused into one, thereby completing the processing and forming of the plurality of bipolar plates. Compared with the prior art, when processing and forming the bipolar plate, continuous automatic hot pressing of the plurality of polyethylene plates and the graphite felt can be achieved, which has the advantages of good bipolar plate processing and forming effect and high processing and forming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a bipolar plate batch processing and molding device Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of a bipolar plate batch processing and molding device Figure 2 ;

[0029] Figure 3 for Figure 1 A magnified schematic diagram of the middle A area;

[0030] Figure 4 for Figure 2 A magnified schematic diagram of the middle B area;

[0031] In the figure: 10-bottom plate, 101-column, 102-top plate, 103-support plate, 104-guide rail, 20-holding assembly, 201-holding belt, 202-belt roller, 30-heating roller, 301-first rotating shaft, 302-cutter, 40-winding roller, 401-second rotating shaft, 50-first driving assembly, 501-motor, 502-screw rod, 503-mounting plate, 504-slider, 505-first bracket plate, 506-second bracket plate, 60-second driving assembly, 601-driving rod, 602-rack, 603-oblique gear, 604-elastic member, 605-first gear, 606-second gear. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] See also Figure 1 as well as Figure 2 The present embodiment provides a bipolar plate batch processing and forming device, including a bottom plate 10, a holding assembly 20, a heating and pressing roller 30, a winding roller 40, a first driving assembly 50 and a second driving assembly 60. The top edge of the bottom plate 10 is fixedly provided with a top plate 102 through a plurality of columns 101. The holding assembly 20 is arranged on the top of the bottom plate 10 to provide support for a plurality of polyethylene plates. The heating and pressing roller 30 and the winding roller 40 are arranged above the holding assembly 20. The winding roller 40 is used to wind the graphite felt. The first driving assembly 50 is installed on the The bottom of the top plate 102 is used to drive the heating roller 30 and the winding roller 40 to move above the containing component 20. The second driving component 60 is arranged on the side of the heating roller 30 and the winding roller 40. When the heating roller 30 and the winding roller 40 move, the second driving component 60 is used to drive the heating roller 30 and the winding roller 40 to rotate. When the winding roller 40 rotates, the graphite felt is unwound onto the upper surface of several polyethylene plates. When the heating roller 30 rotates, the graphite felt unwound onto the upper surface of several polyethylene plates is heated and rolled.

[0035] When processing and forming the bipolar plates, a plurality of polyethylene plates can be placed on the upper part of the containing component 20 and arranged in sequence on the upper part of the containing component 20. Then, the first driving component 50 drives the heating and pressing roller 30 and the winding roller 40 to move along the upper part of the containing component 20. At the same time, the second driving component 60 is used to drive the heating and pressing roller 30 and the winding roller 40 to rotate. When the winding roller 40 rotates, the wound graphite felt is unwound onto the upper surface of the polyethylene plate. When the heating and pressing roller 30 rotates, the graphite felt unwound onto the upper surface of the plurality of polyethylene plates is heated and rolled, so that the graphite felt and the plurality of polyethylene plates are heat-fused into one, thereby completing the processing and forming of the plurality of bipolar plates.

[0036] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 In one embodiment, the first driving component 50 includes a motor 501, a screw rod 502, a mounting plate 503 and a slider 504, the motor 501 is fixedly mounted on the bottom of the top plate 102, one end of the screw rod 502 is connected to the output end of the motor 501, and the other end passes through the slider 504 and is threadedly matched with the slider 504, the mounting plate 503 is fixedly arranged at the bottom of the slider 504, a first bracket plate 505 and a second bracket plate 506 are fixedly arranged at the bottom of the mounting plate 503, a first rotating shaft 301 is fixedly arranged at the end of the heating and pressing roller 30, and an end of the first rotating shaft 301 away from the heating and pressing roller 30 is rotatably connected to the second bracket plate 506, a second rotating shaft 401 is fixedly arranged at the end of the winding roller 40, and an end of the second rotating shaft 401 away from the winding roller 40 is rotatably connected to the first bracket plate 505, and the winding roller 40 is arranged at a position obliquely above the heating and pressing roller 30.

[0037] When a number of polyethylene plates are placed on the upper part of the containing component 20 and arranged in sequence, the motor 501 drives the lead screw 502 to rotate in the forward direction, and the threaded cooperation between the lead screw 502 and the slider 504 drives the slider 504 and the mounting plate 503 to move horizontally to the right along the upper part of the containing component 20. When the mounting plate 503 moves, it drives the heating roller 30 and the winding roller 40 to move horizontally to the right synchronously through the first bracket plate 505 and the second bracket plate 506. At this time, the second driving component 60 drives the heating roller 30 and the winding roller 40 to rotate. When the winding roller 40 rotates, the graphite felt wound on the outside thereof is unwound onto the upper surface of the several polyethylene plates. When the heating roller 30 rotates, the graphite felt unwound onto the upper surface of the several polyethylene plates is heated and rolled. When being heated and rolled, the graphite felt can be hot-melted on the upper surface of the polyethylene plate, thereby being hot-melted into a whole with the polyethylene plate.

[0038] See also Figure 2In one embodiment, a guide rail 104 is fixedly provided at the bottom of the top plate 102, and the slider 504 is slidably matched with the guide rail 104. Through the sliding cooperation between the slider 504 and the guide rail 104, the screw rod 502 can smoothly cooperate with the slider 504 through the thread during rotation, thereby driving the slider 504 and the mounting plate 503 to move horizontally as a whole.

[0039] See also Figure 3 as well as Figure 4 In one embodiment, the second driving assembly 60 includes a driving rod 601, a rack 602, a beveled tooth piece 603, a first gear 605 and a second gear 606, the first gear 605 is fixedly arranged outside the second rotating shaft 401, the second gear 606 is fixedly arranged outside the first rotating shaft 301, the driving rod 601 is arranged between the first gear 605 and the second gear 606, the driving rod 601 is horizontally distributed, the end of the driving rod 601 is fixedly connected to the bottom of the top plate 102 through a supporting rod, the rack 602 is fixedly arranged at the bottom of the driving rod 601 and meshes with the second gear 606, the beveled tooth piece 603 is provided with a plurality of groups, a plurality of the beveled tooth pieces 603 are hingedly arranged on the upper part of the driving rod 601 and are distributed in sequence at intervals, one side of each group of the beveled tooth pieces 603 is connected to the driving rod 601 through a group of elastic members 604, and a plurality of the beveled tooth pieces 603 can be unidirectionally meshed with the first gear 605.

[0040] When the screw rod 502 rotates forward and drives the heating pressure roller 30 and the winding roller 40 to move horizontally to the right above the containing component 20, the heating pressure roller 30 and the winding roller 40 can rotate through the meshing action of the second gear 606 and the rack 602 and the meshing action of the first gear 605 and the plurality of bevel gear plates 603. When the winding roller 40 rotates, it unwinds the wound graphite felt onto the upper surfaces of the plurality of polyethylene plates. When the heating pressure roller 30 rotates, it heats and rolls the graphite felt unwound onto the upper surfaces of the plurality of polyethylene plates, thereby promoting hot-melt bonding between the graphite felt and the polyethylene plates. When all the polyethylene plates on the upper part of the containing component 20 are hot-melt bonded with graphite felt, the motor 501 drives the screw rod 502 to rotate in the opposite direction, and drives the mounting plate 503, the heating pressure roller 30 and the winding roller 40 as a whole to move horizontally through the reverse thread cooperation between the screw rod 502 and the slider 504. Move to the left to reset the heating roller 30 and the winding roller 40. After the heating roller 30 and the winding roller 40 are reset, the staff removes the several hot-melt polyethylene plates with graphite felt on the upper part of the holding component 20, and then replaces the new several polyethylene plates and drives the screw rod 502 to rotate forward again through the motor 501, thereby driving the heating roller 30 and the winding roller 40 to move horizontally to the right again, and then heats and rolls the graphite felt subsequently unwound onto the upper surface of the several polyethylene plates on the winding roller 40 again, so as to realize the batch processing and forming of the bipolar plates; when the above-mentioned winding roller 40 moves horizontally to the left for resetting, the corresponding first gear 605 pushes the several beveled teeth 603 and then drives the several beveled teeth 603 to deflect in the direction of the driving rod 601 in turn, and the several beveled teeth 603 cannot enter into a meshing state with the first gear 605, so that the winding roller 40 remains stationary when moving in the opposite direction.

[0041] See also Figure 4 In one embodiment, a cutter 302 is fixedly provided on the side wall of the heating and pressing roller 30 along the length direction.

[0042] As the heated pressing roller 30 rolls the graphite felt, when the heated pressing roller 30 rolls between two adjacent groups of polyethylene plates, the cutter 302 on the side wall of the heated pressing roller 30 acts on the graphite felt, and then cuts the graphite felt to form a number of graphite felt sheets corresponding to the polyethylene plates one by one, and the graphite felt sheets are separated from each other. After the bipolar plate is processed and formed, the staff can conveniently pick up the bipolar plates in turn; when the heated pressing roller 30 rolls the graphite felt, since the second gear 606 is in meshing state with the rack 602 at the bottom of the driving rod 601, the heated pressing roller 30 is relatively When the graphite felt and the polyethylene sheet rotate counterclockwise, the heating roller 30 drives the cutter 302 to rotate counterclockwise synchronously. When the cutter 302 rotates counterclockwise, the graphite felt can be cut at the left side of the heating roller 30. After the heating roller 30 cuts the graphite felt, the heating roller 30 can timely press the graphite felt part connected to the winding roller 40 onto the subsequent polyethylene sheet surface to prevent the graphite felt led out from the winding roller 40 from detaching from between the heating roller 30 and the polyethylene sheet, thereby ensuring that the subsequent graphite felt can be smoothly hot-melted onto the subsequent polyethylene sheet surface.

[0043] In one embodiment, the elastic member 604 may be a spring or a metal spring, which is not limited here.

[0044] In one embodiment, the circumferential side wall of the heating roller 30 is covered with an electric heating plate (not shown in the figure), and the graphite felt can be heated by the setting of the electric heating plate. After being heated, the graphite felt is thermally melted into one with the polyethylene plate at the bottom.

[0045] See also Figure 1 as well as Figure 2 In one embodiment, the containing assembly 20 includes a containing belt 201 and a belt roller 202, and the belt roller 202 is provided with two groups. The two groups of belt rollers 202 are rotatably arranged on the left and right sides of the upper part of the base plate 10, and the two ends of the containing belt 201 are respectively sleeved on the outside of the two groups of belt rollers 202, and one group of the belt rollers 202 is controlled to rotate by an external motor (not shown in the figure). A support plate 103 is fixedly arranged on the upper part of the base plate 10, and the support plate 103 extends to the inner side of the containing belt 201 to provide support for the containing belt 201.

[0046] By placing a plurality of polyethylene sheets on the upper part of the holding belt 201 and arranging the plurality of polyethylene sheets in sequence, when the heating and pressing roller 30 heats and rolls the graphite felt, the supporting plate 103 provides support to the holding belt 201 from the bottom of the holding belt 201, thereby preventing the holding belt 201 from bending and deformation, so as to improve the hot melting effect between the graphite felt and the polyethylene sheets; after the hot melting of the plurality of polyethylene sheets and the graphite felt is completed to form a plurality of bipolar plates, an external motor drives one group of belt rollers 202 to rotate, thereby driving the holding belt 201 to operate, and the operating holding belt 201 drives the plurality of bipolar plates to move, and the plurality of bipolar plates slide away from one end of the holding belt 201 by themselves, thereby realizing automatic discharge of the plurality of bipolar plates.

[0047] In one embodiment, the outer surface of the containing belt 201 is provided with a plurality of limiting grooves (not shown in the figure) adapted to the polyethylene sheet. By setting the plurality of limiting grooves, the plurality of polyethylene sheets can be limited, thereby preventing the polyethylene sheet from shaking and displacing when the heating roller 30 heats and rolls the graphite felt, thereby improving the accuracy of hot melting of the polyethylene sheet and the graphite felt.

[0048] In an embodiment of the present invention, when the bipolar plates are processed and formed, a plurality of polyethylene plates can be placed on the upper part of the containing assembly 20 and arranged in sequence on the upper part of the containing assembly 20, and then the first driving assembly 50 drives the heating and pressing roller 30 and the winding roller 40 to move along the upper part of the containing assembly 20, and at the same time, the second driving assembly 60 is used to drive the heating and pressing roller 30 and the winding roller 40 to rotate, and when the winding roller 40 rotates, the graphite felt wound thereon is unwound onto the upper surface of the polyethylene plate, and when the heating and pressing roller 30 rotates, the graphite felt unwound onto the upper surface of the plurality of polyethylene plates is heated and rolled, so that the graphite felt and the plurality of polyethylene plates are heat-fused into one, thereby completing the processing and forming of the plurality of bipolar plates. Compared with the prior art, when the bipolar plates are processed and formed, continuous and automatic hot pressing of the plurality of polyethylene plates and the graphite felt can be achieved, which has the advantages of good bipolar plate processing and forming effect and high processing and forming efficiency.

[0049] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A bipolar plate batch processing and forming device, characterized in that: It includes a bottom plate, a containing assembly, a heating roller, a winding roller, a first driving assembly and a second driving assembly. The upper edge of the bottom plate is fixed with a top plate through a plurality of columns. The containing assembly is arranged on the upper part of the bottom plate, and is used to provide support for a plurality of polyethylene plates. The heating and pressing roller and the winding roller are arranged above the containing assembly, and the winding roller is used to wind the graphite felt. The first driving assembly is installed at the bottom of the top plate, and is used to drive the heating and pressing roller and the winding roller to move above the containing assembly. The second driving assembly is arranged at the side of the heating roller and the winding roller. When the heating roller and the winding roller move, the second driving assembly is used to drive the heating roller and the winding roller to rotate. When the winding roller rotates, the graphite felt is unwound onto the upper surfaces of the plurality of polyethylene plates. When the heating roller rotates, the graphite felt unwound onto the upper surfaces of the plurality of polyethylene plates is heated and rolled. The first driving assembly includes a motor, a lead screw, a mounting plate and a slider. The motor is fixedly mounted on the bottom of the top plate, one end of the screw rod is connected to the output end of the motor, and the other end passes through the slider and is threadedly matched with the slider, the mounting plate is fixedly arranged at the bottom of the slider, and the first bracket plate and the second bracket plate are fixedly arranged at the bottom of the mounting plate. A first rotating shaft is fixedly disposed at the end of the heating roller, and one end of the first rotating shaft away from the heating roller is rotatably connected to the second bracket plate. The end of the winding roller is fixedly provided with a second rotating shaft, and one end of the second rotating shaft away from the winding roller is rotatably connected to the first bracket plate. The winding roller is arranged at a position obliquely above the heating and pressing roller. The second driving assembly includes a driving rod, a rack, a beveled gear, a first gear and a second gear. The first gear is fixedly arranged outside the second rotating shaft, the second gear is fixedly arranged outside the first rotating shaft, the driving rod is arranged between the first gear and the second gear, the driving rod is horizontally distributed, the end of the driving rod is fixedly connected to the bottom of the top plate through a supporting rod, the rack is fixedly arranged at the bottom of the driving rod and meshes with the second gear, The helical gear pieces are provided with a plurality of groups, and the plurality of helical gear pieces are hingedly arranged on the upper part of the driving rod and are distributed in sequence at intervals. One side of each group of helical gear pieces is connected to the driving rod through a group of elastic members, and the plurality of helical gear pieces can be unidirectionally meshed with the first gear. A cutter is fixedly arranged on the side wall of the heating roller along the length direction.

2. A bipolar plate batch processing and forming device according to claim 1, characterized in that: A guide rail is fixedly arranged at the bottom of the top plate, and the sliding block is slidably matched with the guide rail.

3. The bipolar plate batch processing and forming device according to claim 1, characterized in that: The circumferential side wall of the heating roller is covered with an electric heating plate.

4. The bipolar plate batch processing and forming device according to claim 1, characterized in that: The containing assembly comprises a containing belt and a belt roller, The belt rollers are provided with two groups, and the two groups of belt rollers are rotatably arranged on the left and right sides of the upper part of the bottom plate. The two ends of the containing belt are respectively sleeved on the outside of the two groups of belt rollers, and one group of belt rollers is controlled to rotate by an external motor. A support plate is fixedly arranged on the upper part of the bottom plate, and the support plate extends to the inner side of the containing belt to provide support for the containing belt.

5. The bipolar plate batch processing and forming device according to claim 4, characterized in that: The outer surface of the containing belt is provided with a plurality of limiting grooves matched with the polyethylene plate.

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