Graphite flow channel bipolar plate forming device

Abstract

The utility model belongs to graphite runner bipolar plate processing device technical field, concretely is a kind of graphite runner bipolar plate forming device, including bottom plate, the top of bottom plate is fixed with top frame, symmetrical installation is carried out in the inside of top frame with hydraulic cylinder, the bottom of hydraulic cylinder is connected with upper die plate, the top of bottom plate is located in the inside of top frame and is provided with lower die plate.This utility model drives the vertical upward movement of the supporting plate one and the supporting plate two by demoulding mechanism, to realize the quick demoulding of bipolar plate, when guiding block one is removed into straight groove by chute, and inclined push plate one and inclined push plate two continue to move horizontally, height difference is formed between supporting plate one and supporting plate two, and the hinged effect between supporting plate one and supporting plate two and stand one and stand two makes supporting plate one and supporting plate two form inclined path, so that the bipolar plate after demoulding is automatically slid off to realize quick discharge with guide frame, without manual operation, reduce manpower consumption, and improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of graphite flow channel bipolar plate processing device, specifically a graphite flow channel bipolar plate forming device. Background Technology

[0002] Graphite channel bipolar plates are a core component of fuel cells, made of high-purity graphite. Their surface features a finely designed flow channel structure to guide hydrogen or oxygen to a uniform distribution on the electrode surface, while simultaneously separating reactant gases, conducting current, draining product water, and dissipating heat, significantly improving battery performance and stability. The manufacturing process of graphite channel bipolar plates utilizes molding equipment, primarily including machining molding equipment, injection molding equipment, and compression molding equipment.

[0003] Existing graphite flow channel bipolar plate forming equipment requires manual demolding after bipolar plate forming, which is inconvenient to operate and can easily damage the bipolar plate if forced demolding is performed. If demolding is performed by using an electric push rod to drive the top plate to move up and lift the bipolar plate, the bipolar plate still needs to be removed manually afterward, resulting in low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a graphite flow channel bipolar plate forming device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graphite flow channel bipolar plate forming device, including a base plate, a top frame fixed to the top of the base plate, hydraulic cylinders symmetrically installed inside the top frame, the bottom end of the hydraulic cylinders connected to the upper template, and a lower template provided on the top of the base plate inside the top frame; The lower template has a demolding mechanism for demolding and unloading, which includes a first inclined push plate and a second inclined push plate that are slidably connected to the lower template. The lower template has a first column and a second column that are slidably connected above the first and second inclined push plates. The tops of the first and second columns are hinged to a first support plate and a second support plate, respectively. The top of the first inclined push plate has a guide groove, and the top of the second inclined push plate has a guide groove. A rotating plate is rotatably connected to the middle of the inner side of the lower template.

[0006] Preferably, the first inclined push plate is located at the front end of the second inclined push plate, and both the first and second inclined push plates are symmetrically arranged about the central axis of the base plate.

[0007] Preferably, the first column and the second column are used to move the first tray and the second tray vertically, respectively. The bottom end of the first column is fixedly connected to the first guide block. The first column and the first inclined push plate form a sliding structure through the first guide groove and the first guide block. The first guide groove consists of an inclined groove and a straight groove located at the top of the inclined groove. The bottom end of the second column is fixedly connected to the second guide block. The second column and the second inclined push plate form a sliding structure through the second guide groove and the second guide block.

[0008] Preferably, a connecting frame is welded between the first inclined push plate and the second inclined push plate. The connecting frame is configured as a "T" shaped structure and is used to enable the first inclined push plate and the second inclined push plate to move synchronously. A connecting plate is hinged between the rotating plate and the connecting frame, and the rotating plate and the connecting plate cooperate to enable the first inclined push plate and the second inclined push plate to slide laterally.

[0009] Preferably, a servo motor is installed at the rear end of the base plate and connected to the rotating plate via a coupling, and the servo motor is used to drive the rotating plate to rotate.

[0010] Preferably, the ends of the inclined push plate one and the inclined push plate two that are far apart from each other are fixedly connected to limit blocks. The lower template has symmetrically opened limit grooves that form a sliding structure with the limit blocks. The limit blocks and limit grooves cooperate to make the inclined push plate one and the inclined push plate two only move laterally.

[0011] Preferably, the front end of the base plate is provided with a conveyor belt for receiving and conveying the sliding bipolar plates, and the top end of the base plate is symmetrically provided with a guide frame for guiding the bipolar plates at the front end of the lower template, and the guide frame includes an inclined plate and a vertical plate welded between the inclined plate and the base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a demolding mechanism to drive tray 1 and tray 2 to move vertically upwards, thereby achieving rapid demolding of bipolar plates. When guide block 1 moves from the inclined groove into the straight groove, and inclined push plate 1 and inclined push plate 2 continue to move laterally, a height difference is formed between tray 1 and tray 2. Through the hinge action between tray 1 and tray 2 and column 1 and column 2, tray 1 and tray 2 form an inclined path, thereby enabling the demolded bipolar plates to automatically slide down with the guide frame for rapid unloading. No manual operation is required, reducing manpower consumption and improving production efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a first-view three-dimensional structural diagram of the present invention in its tilted state; Figure 3 This is a two-dimensional structural diagram of the present invention in a tilted state from a second perspective; Figure 4 This is a three-dimensional structural diagram of the demolding mechanism of this utility model; Figure 5 This is a three-dimensional structural diagram of the inclined push plate one and the inclined push plate two of this utility model; Figure 6 This is a side sectional view of the present invention. Figure 7 This utility model Figure 6 Enlarged structural diagram at point A; Figure 8 This is a frontal cross-sectional view of the lower template of this utility model.

[0014] In the diagram: 1. Base plate; 2. Top frame; 3. Hydraulic cylinder; 4. Upper template; 5. Lower template; 6. Guide frame; 7. Demolding mechanism; 701. Support plate one; 702. Column one; 703. Inclined push plate one; 704. Support plate two; 705. Column two; 706. Inclined push plate two; 707. Connecting frame; 708. Connecting plate; 709. Rotating plate; 710. Servo motor; 711. Guide groove one; 712. Guide block one; 713. Guide groove two; 714. Guide block two; 8. Limiting block; 9. Limiting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-3 and Figure 5 , Figure 8 This utility model provides a technical solution: a graphite flow channel bipolar plate forming device, including a base plate 1, a top frame 2 fixed at the top of the base plate 1, hydraulic cylinders 3 symmetrically installed inside the top frame 2, the bottom end of the hydraulic cylinders 3 connected to the upper template 4, and a lower template 5 set at the top of the base plate 1 inside the top frame 2. Specifically, the raw material is placed in the lower mold 5, and then the upper mold 4 is moved down by the hydraulic cylinder 3 until the upper mold 4 and the lower mold 5 are closed, thereby realizing the forming operation of the bipolar plate.

[0017] exist Figure 1 and Figures 3-7In the middle section: A demolding mechanism 7 for demolding and material unloading is provided through the interior of the lower template 5. The demolding mechanism 7 includes a first inclined push plate 703 and a second inclined push plate 706 that are slidably connected to the lower template 5. The first inclined push plate 703 is located at the front end of the second inclined push plate 706. The two first inclined push plates 703 and the two second inclined push plates 706 are symmetrically arranged about the central axis of the base plate 1. Inside the lower template 5, above the first inclined push plate 703 and the second inclined push plate 706, are slidably connected to the first column 702 and the second column 705, respectively. The top ends of the first column 702 and the second column 705 are respectively hinged to the support plate 701 and the support plate 704. The first column 702 and the second column 704 are connected to the support plate 704. 705 is used to vertically move pallet 701 and pallet 704 respectively. The bottom end of column 702 is fixedly connected to guide block 712. The top end of inclined push plate 703 is provided with guide groove 711. Column 702 and inclined push plate 703 form a sliding structure through guide groove 711 and guide block 712. Guide groove 711 consists of an inclined groove and a straight groove located at the top of the inclined groove. The bottom end of column 705 is fixedly connected to guide block 714. The top end of inclined push plate 706 is provided with guide groove 713. Column 705 and inclined push plate 706 form a sliding structure through guide groove 713 and guide block 714.

[0018] Specifically, since column 1 702 and inclined push plate 1 703 and column 2 705 and inclined push plate 2 706 are slidably connected through guide groove 1 711 and guide block 1 712 and guide groove 2 713 and guide block 2 714 respectively, column 1 702 and column 2 705 drive support plate 1 701 and support plate 2 704 to move vertically upward synchronously, thereby facilitating the rapid demolding of the bipolar plate; Since the guide groove 711 is composed of an inclined groove and a straight groove, when the guide block 712 moves from the inclined groove into the straight groove, and the inclined push plate 703 and the inclined push plate 706 continue to move laterally, the height of the support plate 701 remains unchanged, while the support plate 704 continues to move upward, thereby creating a height difference between the support plate 701 and the support plate 704. Through the hinge between the support plate 701 and the support plate 704 and the columns 702 and 705, the support plate 701 and the support plate 704 form a sloping path, so that the demolded bipolar plate, together with the guide frame 6, automatically slides down to achieve rapid unloading without manual operation, reducing manpower consumption and improving production efficiency.

[0019] exist Figures 3-7In the middle section: A connecting frame 707 is welded between the first inclined push plate 703 and the second inclined push plate 706. The connecting frame 707 is set as a "T" shaped structure. The connecting frame 707 is used to make the first inclined push plate 703 and the second inclined push plate 706 move synchronously. A rotating plate 709 is rotatably connected to the middle of the inner side of the lower template 5. A connecting plate 708 is hinged between the rotating plate 709 and the connecting frame 707. The rotating plate 709 and the connecting plate 708 cooperate to make the first inclined push plate 703 and the second inclined push plate 706 slide laterally. A servo motor 710 is installed at the rear end of the base plate 1 and connected to the rotating plate 709 through a coupling. The servo motor 710 is used to drive the rotating plate 709 to rotate.

[0020] Specifically, after molding is completed, the servo motor 710 is started. The output end of the servo motor 710 drives the rotating plate 709 to rotate. Since the connecting frame 707 and the rotating plate 709 are linked through the connecting plate 708, and the inclined push plate 1 703 and the inclined push plate 2 706 are slidably connected to the lower template 5 through the limiting block 8 and the limiting groove 9, the connecting frame 707 and the inclined push plate 1 703 and the inclined push plate 2 706 move horizontally, and the two symmetrically arranged inclined push plates 1 703 and 2 706 move closer to each other.

[0021] exist Figure 4 , Figure 7 and Figure 8 In the middle: the ends of the inclined push plate 1 703 and the inclined push plate 2 706 that are far apart from each other are fixedly connected to the limit block 8. The lower template 5 has symmetrically opened limit grooves 9 that form a sliding structure with the limit block 8. The limit block 8 and the limit groove 9 cooperate to make the inclined push plate 1 703 and the inclined push plate 2 706 only move laterally.

[0022] Specifically, by using the limiting block 8 in conjunction with the limiting groove 9, the support and limiting of the inclined push plate 1 703 and the inclined push plate 2 706 can be achieved, so that the inclined push plate 1 703 and the inclined push plate 2 706 can only move laterally.

[0023] exist Figures 1-3 and Figure 6 In the middle: The front end of the base plate 1 is provided with a conveyor belt for receiving and conveying the sliding bipolar plates. The top of the base plate 1 is symmetrically provided with a guide frame 6 for guiding the bipolar plates at the front end of the lower template 5. The guide frame 6 includes an inclined plate and a vertical plate welded between the inclined plate and the base plate 1.

[0024] Specifically, the bipolar plate is guided by the guide frame 6, so that the bipolar plate can slide down stably.

[0025] The raw material is placed in the lower mold plate 5, and then the upper mold plate 4 is moved downward by the hydraulic cylinder 3 until the upper mold plate 4 and the lower mold plate 5 are closed, thereby realizing the forming operation of the bipolar plate. After the forming is completed, the servo motor 710 is started. The output end of the servo motor 710 drives the rotating plate 709 to rotate. Through the linkage between the connecting frame 707 and the rotating plate 709, and the sliding action between the inclined push plate 1 703 and the inclined push plate 2 706 and the lower mold plate 5, the connecting frame 707 and the inclined push plate 1 703 and the inclined push plate 2 706 all move horizontally. Through the sliding action between the column 1 702 and the inclined push plate 1 703 and the column 2 705 and the inclined push plate 2 706, the column 1 702 and the column 2 705 respectively drive the support plate 1 701 and the support plate 2 704 to move vertically upward synchronously, thereby... To facilitate rapid demolding of the bipolar plate, when guide block 712 moves from the inclined groove into the straight groove, and inclined push plate 703 and inclined push plate 706 continue to move laterally, the height of support plate 701 remains unchanged, while support plate 704 continues to move upward, thus creating a height difference between support plate 701 and support plate 704. Through the hinge between support plate 701 and support plate 704 and column 702 and column 705, support plate 701 and support plate 704 form a ramp path, allowing the demolded bipolar plate to automatically slide down with the guide frame 6 for rapid unloading without manual operation, reducing manpower consumption and improving production efficiency. Then, servo motor 710 drives rotating plate 709 to reverse and reset support plate 701 and support plate 704 for subsequent remolding operations. Electrical equipment (including but not limited to motors, electric actuators, etc.) is safely powered by an external power source and controlled by a control box. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A graphite flow channel bipolar plate forming device, comprising a base plate (1), a top frame (2) fixed to the top of the base plate (1), hydraulic cylinders (3) symmetrically installed inside the top frame (2), the bottom end of the hydraulic cylinders (3) being connected to an upper template (4), and a lower template (5) being provided on the top of the base plate (1) inside the top frame (2); characterized in that: The lower template (5) is internally provided with a demolding mechanism (7) for demolding and unloading. The demolding mechanism (7) includes a first inclined push plate (703) and a second inclined push plate (706) that are slidably connected to the lower template (5). Inside the lower template (5), above the first inclined push plate (703) and the second inclined push plate (706), the first column (702) and the second column (705) are slidably connected. The top ends of the first column (702) and the second column (705) are respectively hinged with a first support plate (701) and a second support plate (704). The top end of the first inclined push plate (703) is provided with a guide groove (711), and the top end of the second inclined push plate (706) is provided with a guide groove (713). The middle part of the inner side of the lower template (5) is rotatably connected with a rotating plate (709).

2. The graphite flow channel bipolar plate forming apparatus according to claim 1, characterized in that: The first inclined push plate (703) is located at the front end of the second inclined push plate (706), and the two first inclined push plates (703) and the two second inclined push plates (706) are symmetrically arranged about the central axis of the base plate (1).

3. The graphite flow channel bipolar plate forming device according to claim 1, characterized in that: The first column (702) and the second column (705) are used to make the first tray (701) and the second tray (704) move vertically, respectively. The bottom end of the first column (702) is fixedly connected to the first guide block (712). The first column (702) and the first inclined push plate (703) form a sliding structure through the first guide groove (711) and the first guide block (712). The first guide groove (711) consists of an inclined groove and a straight groove located at the top of the inclined groove. The bottom end of the second column (705) is fixedly connected to the second guide block (714). The second column (705) and the second inclined push plate (706) form a sliding structure through the second guide groove (713) and the second guide block (714).

4. The graphite flow channel bipolar plate forming apparatus according to claim 1, characterized in that: A connecting frame (707) is welded between the first inclined push plate (703) and the second inclined push plate (706). The connecting frame (707) is configured as a "T" shaped structure and is used to make the first inclined push plate (703) and the second inclined push plate (706) move synchronously. A connecting plate (708) is hinged between the rotating plate (709) and the connecting frame (707). The rotating plate (709) and the connecting plate (708) cooperate to make the first inclined push plate (703) and the second inclined push plate (706) slide laterally.

5. The graphite flow channel bipolar plate forming apparatus according to claim 4, characterized in that: The rear end of the base plate (1) is equipped with a servo motor (710) connected to the rotating plate (709) via a coupling, and the servo motor (710) is used to drive the rotating plate (709) to rotate.

6. The graphite flow channel bipolar plate forming apparatus according to claim 1, characterized in that: The inclined push plate one (703) and the inclined push plate two (706) are fixedly connected to the ends of the two plates at opposite ends. The lower template (5) is symmetrically provided with limiting grooves (9) that form a sliding structure with the limiting blocks (8). The limiting blocks (8) and the limiting grooves (9) cooperate to make the inclined push plate one (703) and the inclined push plate two (706) move only laterally.

7. The graphite flow channel bipolar plate forming apparatus according to claim 1, characterized in that: The bottom plate (1) is provided with a conveyor belt at the front end for receiving and conveying the bipolar plates that have slipped down. The top of the bottom plate (1) is symmetrically provided with a guide frame (6) for guiding the bipolar plates at the front end of the lower template (5). The guide frame (6) includes an inclined plate and a vertical plate welded between the inclined plate and the bottom plate (1).

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