Rolling device for metal bipolar plate of fuel cell

Abstract

The utility model discloses a rolling device for a fuel cell metal bipolar plate, which comprises a bottom plate, a thinning roller and an embossing round roller, an adjusting assembly and an auxiliary assembly are arranged at the upper end of the bottom plate, the adjusting assembly comprises a rotating rod and a limiting rod, and the auxiliary assembly comprises a rotating shaft II and fan blades. According to the utility model, the rotating rod is rotated to drive the gear I to rotate, the gear I drives the bidirectional threaded rod to rotate through the gear II, and at the moment, the moving blocks do opposite movement or opposite movement, so that the adjustment of the distance between each pair of thin pressing rollers or embossing round rollers is completed, and bipolar plates with different specifications can be produced; the size of the second gear is larger than that of the first gear, so that the rotating speed of the two-way threaded rod is lower than that of the rotating rod, and the distance between the thinning rollers or the embossing round rollers can be adjusted more accurately; the motor is started to enable the multiple pairs of fan blades to rotate, the bipolar plate penetrates through the box body after embossing is finished, and at the moment, residual chippings, impurities and the like on the surface of the bipolar plate are cleaned through airflow blown out by the fan blades.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a rolling device for a metal bipolar plate of a fuel cell. Background Art

[0002] In order to improve production capacity, most of the existing metal bipolar plates of fuel cells are produced by rolling devices. After searching, the Chinese patent with patent number CN111613807A discloses a fuel cell graphite bipolar plate rolling device, including a material discharge spoke, a traction mechanism, a pair of embossed circular spokes, multiple pairs of thinning spokes and a driving mechanism. The raw material coil is arranged on the material discharge spoke, and the multiple pairs of thinning spokes and a pair of embossed circular spokes are arranged in sequence along the moving direction of the raw material coil. There is a gap between each pair of thinning spokes and each pair of embossed circular rollers for the raw material coil to pass through. The gap between each pair of thinning spokes decreases in sequence, and the outer wall of the embossed circular roller is correspondingly provided with a flow channel shape of the bipolar plate; the traction mechanism is used to pull the material belt to move in a direction away from the material discharge mixer; the driving mechanism drives the embossed circular roller and the thinning roller to rotate. The present invention adopts a continuous process of multiple segmented thinning and one-time radial pressing, which improves production efficiency and reduces manual labor; the embossed radials have high precision, the produced graphite bipolar plates have high consistency and stable dimensions; and the output and yield of graphite bipolar plates are improved.

[0003] However, the distance between the two embossing circular rollers and the distance between the two thinning rollers in each group of the four thinning rollers in the above device are fixed values ​​and cannot be adjusted, so it cannot adapt to the production of bipolar plates of different specifications. Utility Model Content

[0004] The purpose of the utility model is to provide a rolling device for a metal bipolar plate of a fuel cell to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling device for fuel cell metal bipolar plates, comprising a base plate, a thinning roller and an embossing roller, an upper end of the base plate is provided with an adjustment component and an auxiliary component, the adjustment component comprises a rotating rod and a limiting rod, and the auxiliary component comprises a rotating shaft 2 and fan blades.

[0006] Preferably, a frame is fixedly mounted on the upper end of the base plate, and a traction roller is rotatably connected to the upper end of the base plate.

[0007] Preferably, the upper end of the base plate is fixedly connected to a connecting seat, the surface of the rotating rod is fixedly sleeved with gear 1, the interior of the connecting seat is rotatably connected to a bidirectional threaded rod, the surface of the bidirectional threaded rod is threadedly connected to a moving block, and the upper end of the bidirectional threaded rod is fixedly connected to gear 2.

[0008] Preferably, the gear one is meshed with the gear two, and the size of the gear two is larger than the size of the gear one.

[0009] Preferably, the limiting rod is fixedly connected to the moving block, the limiting rod is slidably connected to the connecting seat, and the thinning roller and the embossing circular roller are both rotatably connected to the moving block.

[0010] Preferably, the upper end of the base plate is fixedly connected to a box body, and a motor is fixedly installed on the upper end of the box body. One end of the motor output shaft is fixedly sleeved with a rotating shaft 1, a sprocket 1 is fixedly sleeved on the surface of the rotating shaft 1, a sprocket 2 is fixedly sleeved on the surface of the rotating shaft 2, and chains are movably sleeved on the surfaces of the sprocket 1 and the sprocket 2.

[0011] Preferably, the second rotating shaft is fixedly connected to the fan blades, and the second rotating shaft and the first rotating shaft are both rotatably connected to the box body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Gear 1 is driven to rotate by rotating the rotating rod, and gear 1 drives the bidirectional threaded rod to rotate through gear 2. At this time, the moving blocks move toward or away from each other, thereby completing the adjustment of the spacing between each pair of thinning rollers or embossing rollers, so that bipolar sheets of different specifications can be produced;

[0014] 2. The size of gear 2 is larger than that of gear 1, so the speed of the bidirectional threaded rod is lower than that of the rotating rod, which makes it easier to adjust the spacing of the thinning roller or embossing roller more accurately;

[0015] 3. Start the motor to make multiple pairs of fan blades rotate. After the embossing is completed, the bipolar sheet penetrates the box body. At this time, the airflow blown out by the fan blades cleans the remaining debris and impurities on the surface of the bipolar sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0018] Figure 3 This is a schematic diagram of the auxiliary component structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the box body of the present utility model.

[0020] In the figure: 1, bottom plate; 2, frame; 3, thinning roller; 4, embossing roller; 5, traction roller; 6, adjustment component; 7, auxiliary component; 601, connecting seat; 602, rotating rod; 603, gear one; 604, gear two; 605, two-way threaded rod; 606, moving block; 607, limit rod; 701, box; 702, motor; 703, rotating shaft one; 704, sprocket one; 705, chain; 706, sprocket two; 707, rotating shaft two; 708, fan blades. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figures 1 to 4 As shown, a rolling device for a fuel cell metal bipolar plate in an embodiment of the first aspect of the utility model comprises a bottom plate 1, a thinning roller 3 and an embossing roller 4, an upper end of the bottom plate 1 is provided with an adjusting component 6 and an auxiliary component 7, the adjusting component 6 comprises a rotating rod 602 and a limiting rod 607, the auxiliary component 7 comprises a rotating shaft 707 and a fan blade 708, a frame 2 is fixedly mounted on the upper end of the bottom plate 1, a traction roller 5 is rotatably connected to the upper end of the bottom plate 1, a connecting seat 601 is fixedly connected to the upper end of the bottom plate 1, and a surface of the rotating rod 602 is fixedly sleeved. There is a gear 1 603, the internal rotation connection of the connecting seat 601 is a two-way threaded rod 605, the surface of the two-way threaded rod 605 is threadedly connected to a moving block 606, the upper end of the two-way threaded rod 605 is fixedly connected to a gear 2 604, the gear 1 603 is meshed with the gear 2 604, the size of the gear 2 604 is larger than the size of the gear 1 603, the limit rod 607 is fixedly connected to the moving block 606, the limit rod 607 is slidably connected to the connecting seat 601, and the thinning roller 3 and the embossing roller 4 are both rotationally connected to the moving block 606.

[0024] In the above embodiment, it should be noted that the moving block 606 is limited by the limiting rod 607 to prevent the moving block 606 from rotating so that it can be lifted and lowered in a straight line.

[0025] The technical effect achieved by the above embodiment is: by rotating the rotating rod 602, gear one 603 is driven to rotate, and gear one 603 drives the bidirectional threaded rod 605 to rotate through gear two 604. At this time, the moving block 606 moves toward or away from each other, thereby completing the adjustment of the spacing between each pair of thinning rollers 3 or embossing rollers 4, so that bipolar sheets of different specifications can be produced, and the size of gear two 604 is larger than the size of gear one 603, so the rotation speed of the bidirectional threaded rod 605 is lower than the rotation speed of the rotating rod 602, which facilitates more precise adjustment of the spacing between the thinning rollers 3 or the embossing rollers 4.

[0026] Example 2

[0027] like Figure 3 and Figure 4 As shown, a rolling device for fuel cell metal bipolar plates includes all the contents of Example 1. In addition, the upper end of the base plate 1 is fixedly connected to the box body 701, and the upper end of the box body 701 is fixedly installed with a motor 702. One end of the output shaft of the motor 702 is fixedly sleeved with a rotating shaft 1 703, and the surface of the rotating shaft 1 703 is fixedly sleeved with a sprocket 1 704, and the surface of the rotating shaft 2 707 is fixedly sleeved with a sprocket 2 706. The surfaces of the sprocket 1 704 and the sprocket 2 706 are both movably sleeved with a chain 705, the rotating shaft 2 707 is fixedly connected to the fan blade 708, and the rotating shaft 2 707 and the rotating shaft 1 703 are both rotatably connected to the box body 701.

[0028] The technical effect achieved by the above embodiment is: by starting the motor 702, the rotating shaft 703 and the sprocket 1 704 are driven to rotate, and the sprocket 1 704 drives multiple pairs of sprockets 2 706, the rotating shaft 707 and the fan blade 708 to rotate through the chain 705. After the embossing is completed, the bipolar sheet passes through the box body 701. At this time, the airflow blown out by the fan blade 708 cleans the residual debris and impurities on the surface of the bipolar sheet.

[0029] Working principle: Gear 1 603 is driven to rotate by rotating the rotating rod 602, and gear 1 603 drives the bidirectional threaded rod 605 to rotate through gear 2 604. At this time, the moving block 606 moves towards or away from each other, thereby completing the adjustment of the spacing between each pair of thinning rollers 3 or embossing rollers 4; the bipolar sheet is thinned by the thinning roller 3, and the surface of the bipolar sheet is embossed by the embossing roller 4. By starting the motor 702, multiple pairs of fan blades 708 are rotated. After the embossing is completed, the bipolar sheet passes through the box body 701. At this time, the airflow blown out by the fan blades 708 cleans the residual debris and impurities on the surface of the bipolar sheet.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A rolling device for a fuel cell metal bipolar plate, characterized in that: The invention comprises a bottom plate (1), a thinning roller (3) and an embossing roller (4); an adjusting component (6) and an auxiliary component (7) are arranged at the upper end of the bottom plate (1); the adjusting component (6) comprises a rotating rod (602) and a limiting rod (607); the auxiliary component (7) comprises a second rotating shaft (707) and a fan blade (708); a connecting seat (601) is fixedly connected to the upper end of the bottom plate (1); a gear (603) is fixedly sleeved on the surface of the rotating rod (602); and the connecting seat (601) is fixedly sleeved on the surface of the rotating rod (602); The seat (601) is internally rotatably connected with a bidirectional threaded rod (605), the surface of the bidirectional threaded rod (605) is threadedly connected with a moving block (606), the upper end of the bidirectional threaded rod (605) is fixedly connected with a gear 2 (604), the limit rod (607) is fixedly connected to the moving block (606), the limit rod (607) is slidably connected to the connecting seat (601), and the thinning roller (3) and the embossing roller (4) are both rotatably connected to the moving block (606).

2. A rolling device for a fuel cell metal bipolar plate according to claim 1, characterized in that: A frame (2) is fixedly mounted on the upper end of the base plate (1), and a traction roller (5) is rotatably connected to the upper end of the base plate (1).

3. A rolling device for a fuel cell metal bipolar plate according to claim 1, characterized in that: The gear one (603) is meshed with the gear two (604), and the size of the gear two (604) is larger than the size of the gear one (603).

4. A rolling device for a fuel cell metal bipolar plate according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixedly connected to a box body (701), and a motor (702) is fixedly installed on the upper end of the box body (701); one end of the output shaft of the motor (702) is fixedly sleeved with a rotating shaft 1 (703); a sprocket 1 (704) is fixedly sleeved on the surface of the rotating shaft 1 (703); a sprocket 2 (706) is fixedly sleeved on the surface of the rotating shaft 2 (707); and chains (705) are movably sleeved on the surfaces of the sprocket 1 (704) and the sprocket 2 (706).

5. A rolling device for a fuel cell metal bipolar plate according to claim 4, characterized in that: The second rotating shaft (707) is fixedly connected to the fan blade (708), and the second rotating shaft (707) and the first rotating shaft (703) are both rotatably connected to the box body (701).

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