Flexible graphite bipolar plate compression molding apparatus

Abstract

The utility model relates to flexible graphite bipolar plate mould pressing forming device technical field, specifically is a kind of flexible graphite bipolar plate mould pressing forming device, including operation platform, the operation platform one side is provided with punch device body, the operation platform top is provided with sliding table, the sliding table top is provided with lower mould;The utility model is by being placed into multiple forming cavities of lower mould with multiple flexible graphite raw materials, flexible graphite raw materials are formed by stamping using punch device body, then, sliding table is removed by pulling, push rod is pushed by control cylinder, push rod is pushed multiple groups of sliding blocks using side rod, sliding block is pushed out by cooperation roller and ejector rod and pushes out block upward, so that the flexible graphite bipolar plate after forming in multiple forming cavities can be ejected, so that the flexible graphite bipolar plate after stamping can be conveniently and quickly removed, reaches the effect that flexible graphite bipolar plate is efficiently demoulded, solves the problem that flexible graphite bipolar plate mould pressing forming device demoulding is not convenient enough.

Description

Technical Field

[0001] This utility model relates to the technical field of flexible graphite bipolar plate molding device, specifically a flexible graphite bipolar plate molding device. Background Technology

[0002] Flexible graphite bipolar plates are key components of fuel cells. They are made of low-cost flexible graphite as the base material and are rapidly formed through molding. They are characterized by light weight, low contact resistance, high penetration conductivity, and strong corrosion resistance. They are usually molded using molding equipment to achieve mass production.

[0003] Currently, in existing technologies, the demolding process of flexible graphite bipolar plates after molding requires manual operation, which makes demolding inconvenient. However, forced demolding may damage the molded bipolar plates, reducing the practicality of the flexible graphite bipolar plate stamping die and slowing down the production speed. Therefore, it is necessary to propose a flexible graphite bipolar plate molding device. Utility Model Content

[0004] To address the shortcomings of existing technologies and the inconvenience of demolding in flexible graphite bipolar plate molding devices, this invention proposes a flexible graphite bipolar plate molding device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a flexible graphite bipolar plate molding device, including an operating table, a stamping device body is provided on one side of the operating table, a slide is provided on the top of the operating table, a lower mold is provided on the top of the slide, a molding cavity is opened on the top of the lower mold, and an ejection mechanism is provided inside the molding cavity.

[0006] The ejection mechanism includes a cylinder, which is fixedly connected to the top of the slide table. The cylinder's telescopic shaft extends through the inner cavity of the lower mold and is equipped with a push rod. Side rods are provided on both sides of the outer wall of the push rod, and a slider is provided at one end of the side rod. An ejection block is provided inside the molding cavity, and an ejection rod is provided at the bottom of the ejection block. A roller is provided at the bottom of the ejection rod, and the roller slides in cooperation with the slider.

[0007] Preferably, the top two sides of the operating table are fixedly connected to the first guide rail, and the slide is slidably connected to the top of the first guide rail.

[0008] Preferably, a baffle is fixedly connected to one end of the top of the operating table near the first guide rail, and the baffle cooperates with the slide table to limit its movement.

[0009] Preferably, a guide sleeve is slidably connected to the outer wall of the push rod, and the guide sleeve is fixedly connected to the inner cavity of the lower mold.

[0010] Preferably, a second guide rail is fixedly connected to the top of the slide table, and the slider is slidably connected to the top of the second guide rail.

[0011] Preferably, the bottom of the molding cavity is provided with an ejector groove, the ejector block is slidably connected inside the ejector groove, and the bottom of the ejector rod extends out of the bottom of the ejector groove.

[0012] Preferably, the top of the slider has an inclined surface, and the roller is slidably connected to the surface of the inclined surface.

[0013] The advantages of this utility model are:

[0014] This invention involves placing multiple flexible graphite raw materials into multiple forming cavities of a lower mold, using a stamping device to stamp and form the flexible graphite raw materials, and then pulling the slide table out. A control cylinder pushes a push rod, which in turn pushes multiple sets of sliders via side rods. These sliders, in conjunction with rollers and an ejector rod, push an ejector block upwards, thereby ejecting the formed flexible graphite bipolar plates from the multiple forming cavities. This allows for convenient and rapid removal of the stamped flexible graphite bipolar plates, achieving efficient demolding of the flexible graphite bipolar plates and solving the problem of inconvenient demolding in flexible graphite bipolar plate molding devices. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the lower mold of this utility model, viewed from a side cross-section.

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0020] Figure 5 This utility model Figure 3 Enlarged structural diagram of section B.

[0021] In the diagram: 1. Operating table; 11. Stamping device body; 12. Slide table; 13. First guide rail; 14. Baffle; 2. Lower mold; 21. Forming cavity; 3. Ejection mechanism; 31. Cylinder; 32. Push rod; 33. Side rod; 34. Slider; 35. Inclined surface; 36. Ejection block; 37. Ejection rod; 38. Roller; 39. Guide sleeve; 310. Ejection groove; 311. Second guide rail. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a flexible graphite bipolar plate molding apparatus. (Refer to...) Figures 1-5 A flexible graphite bipolar plate molding device includes an operating table 1, a stamping device body 11 on one side of the operating table 1, a slide table 12 on the top of the operating table 1, a lower mold 2 on the top of the slide table 12, a molding cavity 21 on the top of the lower mold 2, and an ejection mechanism 3 inside the molding cavity 21. By loading flexible graphite raw material into the molding cavity 21 of the lower mold 2, the flexible graphite raw material is stamped and molded by the stamping device body 11. After stamping, the slide table 12 on the operating table 1 is pulled out, and the slide table 12 drives the lower mold 2 out of the stamping range of the stamping device body 11, thereby improving the efficiency of demolding and material removal. The ejection mechanism 3 ejects the molded flexible graphite bipolar plate out of the molding cavity 21, thereby improving the convenience of demolding.

[0025] The ejection mechanism 3 includes a cylinder 31, which is fixedly connected to the top of the slide table 12. The telescopic shaft of the cylinder 31 extends through the inner cavity of the lower mold 2 and is equipped with a push rod 32. Side rods 33 are provided on both sides of the outer wall of the push rod 32. A slider 34 is provided at one end of the side rod 33. An ejection block 36 is provided inside the molding cavity 21. An ejection rod 37 is provided at the bottom of the ejection block 36. A roller 38 is provided at the bottom of the ejection rod 37. The roller 38 slides in cooperation with the slider 34, thereby moving the slide table 12. After being pulled out, the extension and retraction of the control cylinder 31 extends outward, and the cylinder 31 pushes the push rod 32. The push rod 32 drives the sliders 34 on both sides to slide synchronously through the side rods 33 on both sides. The sliders 34 slide and push the rollers 38 upward. The rollers 38 drive the ejector rod 37 to slide upward. The ejector rod 37 drives the ejector block 36 to push upward, so that the ejector block 36 can eject the formed flexible graphite bipolar plate out of the forming cavity 21, thereby improving the demolding convenience.

[0026] Reference Figure 1 , Figure 2 and Figure 4 The top two sides of the operating table 1 are fixedly connected to the first guide rail 13. The slide table 12 is slidably connected to the top of the first guide rail 13. A baffle 14 is fixedly connected to the top of the operating table 1 near the first guide rail 13. The baffle 14 cooperates with the slide table 12 to limit the movement. A guide sleeve 39 is slidably connected to the outer wall of the push rod 32. The guide sleeve 39 is fixedly connected to the inner cavity of the lower mold 2. By pulling the slide table 12 to move, the slide table 12 slides stably with the first guide rail 13 on the operating table 1. When the slide table 12 is pushed into the stamping range of the stamping device body 11, it will be blocked by the baffle 14, so that the lower mold 2 is exactly in the pressing range of the stamping device body 11.

[0027] Reference Figure 3 and Figure 5The top of the slide table 12 is fixedly connected to the second guide rail 311, and the slider 34 is slidably connected to the top of the second guide rail 311. The bottom of the molding cavity 21 has an ejection groove 310, and the ejection block 36 is slidably connected inside the ejection groove 310. The bottom of the ejection rod 37 extends out of the bottom of the ejection groove 310. The top of the slider 34 has an inclined surface 35, and the roller 38 is slidably connected to the surface of the inclined surface 35. The ejection block 36 is positioned within the ejection groove 310 of the molding cavity 21, forming a single unit with the molding cavity 21, thereby ensuring the stability of the flexible graphite bipolar plate molding process. During molding, the cylinder 31 pushes the push rod 32, which slides stably inside the guide sleeve 39. The push rod 32 pushes the sliders 34 on both sides to slide synchronously. The sliders 34 slide stably in conjunction with the second guide rail 311, so that the cylinder 31 can stably drive multiple sliders 34 to slide back and forth. The sliders 34 push the rollers 38 upward with the inclined surface 35. The rollers 38 push the ejector block 36 upward with the ejector rod 37, so that the ejector block 36 can eject the molded flexible graphite bipolar plate, thereby improving the convenience of demolding the flexible graphite bipolar plate.

[0028] Working principle: Flexible graphite raw material is loaded into the forming cavity 21 of the lower mold 2. The stamping device body 11 is used to press the flexible graphite raw material downward. After stamping, the slide table 12 is pulled and the slide table 12 is separated from the baffle 14. The slide table 12 moves out of the stamping range of the stamping device body 11 in conjunction with the first guide rail 13 on the operating table 1. Demolding is performed by the ejection mechanism 3. The cylinder 31 pushes the push rod 32. The push rod 32 slides stably in the inner cavity of the guide sleeve 39. The push rod 32 pushes the sliders 34 on both sides to slide synchronously using the side rods 33 on both sides. The sliders 34 are stable in conjunction with the second guide rail 311. The sliders 34 slide and push the roller 38 upward with the inclined surface 35. The roller 38 pushes the ejector block 36 upward with the ejector rod 37. The ejector block 36 ejects the formed flexible graphite bipolar plate upward into the forming cavity 21, thereby improving the demolding convenience of the flexible graphite bipolar plate.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A flexible graphite bipolar plate molding apparatus, comprising an operating table (1), characterized in that: The operating table (1) is provided with a stamping device body (11) on one side, and a slide table (12) is provided on the top of the operating table (1). A lower mold (2) is provided on the top of the slide table (12). A forming cavity (21) is opened on the top of the lower mold (2). An ejection mechanism (3) is provided inside the forming cavity (21). The ejection mechanism (3) includes a cylinder (31), which is fixedly connected to the top of the slide (12). The cylinder (31) has a telescopic shaft that extends through the inner cavity of the lower mold (2) and is provided with a push rod (32). The push rod (32) has side rods (33) on both sides of its outer wall. One end of the side rod (33) is provided with a slider (34). The molding cavity (21) is provided with an ejection block (36). The bottom of the ejection block (36) is provided with an ejection rod (37). The bottom of the ejection rod (37) is provided with a roller (38). The roller (38) slides in cooperation with the slider (34).

2. The flexible graphite bipolar plate molding apparatus according to claim 1, characterized in that: The top two sides of the operating table (1) are fixedly connected to the first guide rail (13), and the slide (12) is slidably connected to the top of the first guide rail (13).

3. The flexible graphite bipolar plate molding apparatus according to claim 1, characterized in that: A baffle (14) is fixedly connected to one end of the top of the operating table (1) near the first guide rail (13), and the baffle (14) cooperates with the slide table (12) to limit the movement.

4. The flexible graphite bipolar plate molding apparatus according to claim 1, characterized in that: The outer wall of the push rod (32) is slidably connected to a guide sleeve (39), and the guide sleeve (39) is fixedly connected to the inner cavity of the lower mold (2).

5. The flexible graphite bipolar plate molding apparatus according to claim 1, characterized in that: The top of the slide (12) is fixedly connected to the second guide rail (311), and the slider (34) is slidably connected to the top of the second guide rail (311).

6. The flexible graphite bipolar plate molding apparatus according to claim 1, characterized in that: The bottom of the molding cavity (21) is provided with an ejector groove (310), the ejector block (36) is slidably connected inside the ejector groove (310), and the bottom of the ejector rod (37) extends out of the bottom of the ejector groove (310).

7. The flexible graphite bipolar plate molding apparatus according to claim 1, characterized in that: The top of the slider (34) is provided with an inclined surface (35), and the roller (38) is slidably connected to the surface of the inclined surface (35).

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