A waste separation mechanism for preparing metal plate trimmings for fuel cells

Abstract

The present invention discloses a separation mechanism for preparing waste material from trimming of fuel cell metal plates. The separation mechanism includes a base, a slider, a connecting rod, and a cylinder. The base surface forms an obliquely distributed slope, a slide groove is formed at the slope, the lower part of the slider forms a reverse slope that matches the above slope, the reverse slope forms a slide groove block that matches the slide groove, the upper surface of the slider is horizontally distributed, and a positioning pin is longitudinally arranged on the upper surface of the slider. One end of the connecting rod is movably connected to the slider, and the other end of the connecting rod is connected to the output end of the cylinder, and the cylinder is fixed on a fixed seat. Beneficial effects: ensuring that waste material from trimming of fuel cell monopolar plates can be effectively separated, with high manufacturing precision, simplifying the cumbersome separation process, effectively improving production efficiency and product qualification rate, and avoiding manual separation.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cell metal plate trimming waste separation systems, in particular to a fuel cell metal plate trimming waste separation mechanism for preparing fuel cell metal plate trimming waste separation mechanisms, and in particular to a mechanical connection structure thereof. Background Art

[0002] After a series of tedious stamping processes, the fuel cell metal monopolar plate is prepared with the required hydrogen cavity opening, oxygen cavity opening, water cavity opening, distribution features, flow channels and other forming features. During the forming process of the fuel cell monopolar plate, it is necessary to set process overlaps for the hydrogen cavity opening, oxygen cavity opening, water cavity opening and the outer contour to ensure that effective hydrogen cavity opening, oxygen cavity opening, water cavity opening and outer contour dimensional tolerances can be prepared during subsequent trimming.

[0003] The traditional fuel cell metal monopolar plate trimming die punching preparation has a relatively simple process, a relatively simple structure, and relatively small process force. It is easy to ensure the accuracy of parts, easy to produce and maintain, and the manufacturing cost of the mold is low. In the process of trimming and punching of fuel cell metal monopolar plates, the process waste and the outer shape overlap (oxygen cavity port, water cavity port, hydrogen cavity port) of the forming process are placed under the action of the positioning pin to ensure the position accuracy, and the punching is completed. The waste of the hydrogen cavity port, oxygen cavity port and water cavity port falls through the waste hole of the fuel cell metal monopolar plate trimming die and is discharged from the die. The outer contour trimming waste of the fuel cell metal monopolar plate is usually adhered to the fuel cell metal monopolar plate, and the outer contour trimming waste and the fuel cell metal monopolar plate need to be separated manually, which requires more manpower and time, and manual operation has safety hazards. The outer contour trimming waste of the fuel cell metal monopolar plate is thin and easy to scratch the operator, and the work efficiency is low. Vertical separation will scrape the side wall, resulting in edge damage; the gap between the trimming material and the edge of the plate is small, and the separation process is easy to carry the plate, which is not smooth. Summary of the invention

[0004] The purpose of the present invention is to provide a separation mechanism for preparing fuel cell metal plate trimming waste, ensure that fuel cell monopolar plate trimming waste can be effectively separated, simplify the cumbersome separation process, effectively improve production efficiency and product qualification rate, and avoid manual separation. This technical solution overcomes the shortcomings and deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a separation mechanism for preparing trimming waste of fuel cell metal plates, the separation mechanism comprising a base, a slider, a connecting rod, and a cylinder, the surface of the base forms an obliquely distributed slope, a slide groove is formed at the slope, the lower part of the slider forms a reverse slope matching the above-mentioned slope, the reverse slope forms a slide groove block matching the slide groove, the upper surface of the slider is horizontally distributed, and a locating pin is longitudinally arranged on the upper surface of the slider, one end of the connecting rod is movably connected to the slider, and the other end of the connecting rod is connected to the output end of the cylinder, and the cylinder is fixed on a fixed seat.

[0006] The present invention discloses a mechanism for separating trimming waste for preparing fuel cell metal plates, which has the beneficial effects of ensuring that trimming waste of fuel cell monopolar plates can be effectively separated, having high manufacturing precision, simplifying the cumbersome separation process, being able to effectively improve production efficiency and product qualification rate, and avoiding manual separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the present invention.

[0008] Figure 2 This is a diagram of the first use state of the trimming waste separation mechanism of the present invention.

[0009] Figure 3 for Figure 2 Top view of the .

[0010] Figure 4 This is a diagram of the second use state of the trimming waste separation mechanism of the present invention.

[0011] Figure 5 for Figure 4 Top view of the .

[0012] Figure 6 This is a diagram of the third use state of the trimming waste separation mechanism of the present invention.

[0013] Figure 7 for Figure 6 Top view of the .

[0014] Figure 8 This is a diagram of the stamping process of existing fuel cell metal monopolar plates. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with illustrations and specific embodiments.

[0016] The present invention discloses a waste separation mechanism for preparing metal plate trimmings for fuel cells, such as Figure 1As shown in , it is different from the prior art in that: the separation mechanism includes a base 1, a slider 2, a connecting rod 3, and a cylinder 4. The surface of the base 1 forms an obliquely distributed slope 5, and a slide groove 6 is formed at the slope 5. The lower part of the slider 2 forms a reverse slope 7 that cooperates with the above-mentioned slope 5, and a slide groove block 8 that cooperates with the slide groove 6 is formed at the reverse slope 7. The upper surface of the slider 2 is horizontally distributed, and a positioning pin 9 is longitudinally arranged on the upper surface of the slider 2. One end of the connecting rod 3 is movably connected to the slider 2, and the other end of the connecting rod 3 is connected to the output end of the cylinder 4. The cylinder 4 is fixed on a fixed seat 10.

[0017] In a specific implementation, one end of the connecting rod 3 forms a cylindrical or spherical end, and a mounting groove 11 matching the shape of one end of the connecting rod 3 is opened on the side wall of the slider 2. The groove body cross-section of the mounting groove 11 is approximately a circular groove, and the circular groove body cross-section shape is smaller than a full circle and larger than a semicircle.

[0018] In a specific implementation, the cross-section of the chute 6 is approximately a circular chute, the cross-section of the circular chute is smaller than a full circle and larger than a semicircle, and the cross-section of the chute block 8 matches the cross-section of the chute 6 .

[0019] like Figure 2-Figure 3 As shown, the trimming waste separation structure is applied to the traditional fuel cell metal monopolar plate trimming and punching composite mold. Without changing the structure of the traditional fuel cell metal monopolar plate trimming and punching composite mold, the fuel cell metal monopolar plate trimming waste separation structure is applied to the traditional mold. The mold structure is simple, easy to process and assemble, and has high dimensional accuracy after punching. The upper mold part mainly includes a trimming die, a punching punch, and an inner stripping plate. After the punching is completed, the metal monopolar plate will remain in the cavity of the trimming die. The inner stripping plate will eject the metal monopolar plate under the action of the spring. The lower mold part mainly includes a trimming punching convex and concave mold template and an outer stripping plate. The metal monopolar plate punching waste is discharged from the mold through the waste hole inside the mold. The metal monopolar plate trimming waste is ejected from the lower mold convex and concave mold template under the action of the outer stripping plate. After the positioning pins in the fuel cell metal monopolar plate trimming waste separation structure are moved to a fixed position, the formed metal monopolar plate is placed on the mold, and the positioning holes are positioned by the positioning pins to ensure the position tolerance of the product after trimming. In the figure, the cylinder 4 of the trimming waste separation mechanism 12 is fixed to the edge of the mold through a fixing seat 10.

[0020] like Figure 4-Figure 5 As shown in the figure, the punching machine completes the punching of the fuel cell monopolar plate once, and the punching waste is discharged through the waste hole inside the mold and falls into the waste collection box. The trimming waste is divided into two (the stamping forming process is cut off). Figure 5 The state of the metal monopolar plate of the fuel cell after punching.

[0021] like Figure 6-Figure 7As shown, after the fuel cell monopolar plate is punched, the fuel cell metal monopolar plate trimming waste separation structure starts to move under the action of the cylinder, the movable cylinder drives the slider to move, and the trimming waste moves outward under the drive of the positioning material. At the same time, the positioning pin has a downward movement to separate from the fuel cell monopolar plate waste. Under the action of gravity, the fuel cell monopolar plate waste slides from the lower stripping plate of the mold into the waste collection box, completing the waste separation process.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A separation mechanism for waste material from trimming of metal plates for fuel cells, characterized in that: The separation mechanism comprises a base (1), a slider (2), a connecting rod (3), and a cylinder (4). The base (1) has a surface formed with an obliquely distributed slope (5), a slide groove (6) is formed at the slope (5), a reverse slope (7) matched with the slope (5) is formed at the lower part of the slider (2), a slide groove block (8) matched with the slide groove (6) is formed at the reverse slope (7), the upper surface of the slider (2) is horizontally distributed, a positioning pin (9) is longitudinally arranged at the upper surface of the slider (2), one end of the connecting rod (3) is movably connected to the slider (2), the other end of the connecting rod (3) is connected to the output end of the cylinder (4), and the cylinder (4) is fixed on a fixed seat (10).

2. A separation mechanism for waste material from trimming of fuel cell metal plates according to claim 1, characterized in that: One end of the connecting rod (3) forms a cylindrical or spherical end, and a mounting groove (11) matching the shape of the one end of the connecting rod (3) is provided on the side wall of the slider (2), and the groove body cross section of the mounting groove (11) is approximately a circular groove, and the groove body cross section shape is smaller than a full circle and larger than a semicircle.

3. The device for separating trimming waste for preparing fuel cell metal plates according to claim 1, characterized in that: The cross section of the groove body of the slide groove (6) is approximately a circular groove, the cross section of the groove body is smaller than a full circle and larger than a semicircle, and the cross section of the slide groove block (8) matches the cross section of the groove body of the slide groove (6).

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