Adhesive tape pasting device and method for plate-shaped product

Abstract

The invention discloses an adhesive tape pasting device and method for a plate-shaped product. The adhesive tape pasting device comprises an upper plate and a lower plate, and a plurality of springs are arranged between the upper plate and the lower plate; the upper plate is provided with a groove for containing the rubber strip, the lower plate is provided with a protruding supporting strip, and the supporting strip is opposite to the groove of the upper plate in position. The spring can jack up the upper plate upwards, and the supporting strip is located below the groove. When the upper plate is pressed downwards, the supporting strips are inserted into the grooves and jack up the rubber strips in the grooves upwards. The upper plate is used for containing the adhesive tape, the accuracy of the position of the adhesive tape is guaranteed, the supporting strip of the lower plate is used for ejecting the adhesive tape into the adhesive tape containing groove of the plate-shaped product, the adhesive tape and glue can be fully attached and solidified, uniform attachment of the sealing strip is guaranteed, then the sealing performance and reliability of the fuel cell are improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of adhesive strip pasting, and in particular to an adhesive strip pasting device and method for plate-type products. Background Art

[0002] Fuel cells and electrolyzers are two important products in the hydrogen energy industry chain. The structures of the two are similar, including bipolar plates, pole frames, membrane electrodes, gaskets, etc. When both are in use, since hydrogen has a low density and is easy to diffuse, the requirements for sealing are very high. For example, sealing strips need to be installed on plate-type products such as bipolar plates and pole frames.

[0003] The difficulty of the sealing strips of fuel cell stacks and proton exchange membrane electrolyzers is that they usually require high-precision fitting. A slight deviation may lead to poor sealing, especially since proton exchange membrane electrolyzers usually operate under high pressure, which can easily lead to leakage. However, most of the sealing strips are currently operated manually, and manual stripping operations are prone to problems, resulting in an increased rework rate and a high reliance on manual proficiency. There are also automated equipment on the market for automatic stripping, but such equipment usually has a complex structure, the overall production accuracy and consistency are average, and the processing cost is high. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a device and method for sticking adhesive strips for plate-type products, which can automatically complete the sticking of the adhesive strips and improve the sealing performance.

[0005] To this end, the technical solution of the present invention is: a rubber strip pasting device for plate-type products, comprising an upper plate and a lower plate, with a plurality of springs arranged between the upper plate and the lower plate; the upper plate is provided with a groove for accommodating the rubber strip, and the lower plate is provided with a protruding support strip, and the support strip is opposite to the groove of the upper plate; the spring can push the upper plate upward, and the support strip is located below the groove; when the upper plate is pressed downward, the support strip is inserted into the groove to push the rubber strip in the groove upward.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the depth of the groove at the upper plate is greater than the thickness of the rubber strip, and the difference is greater than 0.3mm; when the upper plate is pressed down, the support strip is inserted into the groove, and the remaining depth of the groove is equal to the thickness of the rubber strip.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: a plurality of first positioning holes are provided on the upper plate, and a circle of limiting step surfaces are provided in the first positioning holes; a first positioning screw hole is provided on the lower plate, and the positioning bolt passes through the first positioning hole and is threadedly engaged with the first positioning screw hole; under the action of the spring, the limiting step surface abuts against the head of the positioning bolt.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a heating groove is wound around the upper plate or the lower plate, and a resistance wire is buried in the heating groove.

[0009] On the basis of the above solution and as a preferred solution of the above solution: positioning pin holes are provided on the upper plate and the lower plate for positioning the plate-type product.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes hydraulic equipment, and a pressure plate is arranged on the hydraulic equipment, and the upper plate and the lower plate are located directly below the pressure plate.

[0011] Another technical solution of the present invention is: a method for sticking a board-shaped product with a rubber strip, comprising the following steps:

[0012] S1. Apply glue evenly in the glue strip placement groove of the plate-type product;

[0013] S2. Place the rubber strip in the groove of the upper plate;

[0014] S3, place the glue-coated side of the plate-shaped product toward the upper plate, align it with the upper plate and the lower plate, and then position it using the positioning pins;

[0015] S4, start the hydraulic equipment, the pressure plate moves down and presses the upper plate, the upper plate descends, and the support strip on the lower plate is inserted upward into the groove, and the rubber strip is pushed upward to fit with the glue on the rubber strip placement groove;

[0016] S5. After continuous pressing for a period of time, the glue solidifies and the adhesive strip is automatically fixed on the board product, completing the adhesive strip pasting process.

[0017] On the basis of the above scheme and as a preferred scheme of the above scheme: in the step S5, the resistance wire on the upper plate or the lower plate can be energized to generate heat to accelerate the curing of the glue between the rubber strip and the plate-shaped product.

[0018] The shape of the groove on the upper plate is designed according to the shape of the rubber strip placement groove on the bipolar plate / pole frame and other plate-type products, so that when the bipolar plate / pole frame and the upper plate are positioned by the positioning pins, the rubber strip in the groove can be aligned with the rubber strip placement groove on the bipolar plate / pole frame. When pressing down, the support strip of the lower plate lifts the rubber strip and presses it into the rubber strip placement groove, and fixes it with glue to complete the rubber strip sticking process.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Use the upper plate to hold the rubber strip to ensure the accuracy of the position of the rubber strip, and use the support strip of the lower plate to push the rubber strip into the rubber strip placement groove of the plate-type product so that the rubber strip and the glue can fully fit and solidify, ensuring the uniform fit of the sealing strip, thereby improving the sealing and reliability of the fuel cell and extending the product life.

[0021] 2. The matching upper and lower plates can be made according to the plate products, and then matched with conventional hydraulic equipment for use. The equipment has low cost and strong versatility, and is suitable for sticking rubber strips on plate products of various types and specifications.

[0022] 3. A resistance wire is buried on the periphery of the upper plate or the lower plate for heating to accelerate the curing of the glue between the rubber strip and the plate product, thereby improving the glue bonding rate and bonding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged view of

[0025] Figure 3 It is an exploded view of the parts of the present invention;

[0026] Figure 4 It is a structural cross-sectional view of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the pole frame of the present invention when it is assembled;

[0028] Figure 6 It is a structural cross-sectional view of the pole frame of the present invention when it is assembled;

[0029] Figure 7 It is an exploded view of the parts when assembling the pole frame of the present invention;

[0030] Figure 8 It is a schematic diagram of the hydraulic state of the present invention.

[0031] Marked in the figure are: upper plate 1, first positioning hole 11, step surface 12, groove 13, first positioning pin hole 14, lower plate 2, first positioning screw hole 21, spring fixing hole 22, support bar 23, second positioning pin hole 24, positioning bolt 3, threaded section 31, smooth section 32, bolt head 33, spring 4, pole frame 5, rubber strip placement groove 51, rubber strip 6, hydraulic equipment 7, pressure plate 71, positioning pin 8. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating 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 operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0034] See the attached drawings. This embodiment takes the pole frame as an example, and is used to stick the adhesive strip 6 on the pole frame 5.

[0035] The adhesive strip sticking device described in this embodiment includes an upper plate 1 and a lower plate 2. The upper plate 1 is provided with a plurality of first positioning holes 11. The first positioning holes 11 are provided with a circle of step surfaces 12, which are divided into a large-diameter section and a small-diameter section; the lower plate 2 is provided with a first positioning screw hole 21, and the first positioning screw hole 21 is opposite to the first positioning hole 11, and the two are connected by a positioning bolt 3; the bottom of the positioning bolt 3 is a threaded section 31, the middle is a smooth section 32, and the top is a bolt head 33, the threaded section 31 is threadedly fixed to the first positioning screw hole 21 of the lower plate, the first positioning hole 11 is sleeved on the smooth section 32, and can move along the smooth section 32, the outer diameter of the bolt head 33 is larger than the small-diameter section of the first positioning hole 11, so that it can be offset against the step surface 12 to limit the moving distance of the upper plate 1.

[0036] A plurality of springs 4 are provided between the upper plate 1 and the lower plate 2. A plurality of spring fixing holes 22 are provided at the edges of the opposite sides of the upper plate 1 and the lower plate 2. Both ends of the spring 4 are respectively placed in the two spring fixing holes. The spring 4 can support the upper plate 1 so that there is a gap between the upper plate 1 and the lower plate 2 in the initial stage, that is, the upper plate 1 is lifted so that the step surface 12 in the first positioning hole 11 abuts against the lower end of the bolt head 33.

[0037] The upper plate 1 is provided with a groove 13 for accommodating the rubber strip 6, the shape and position of the groove 13 are consistent with the rubber strip placement groove 51 on the pole frame 5, and the depth of the groove 13 is greater than the thickness of the rubber strip 6, and the difference is more than 0.3mm, which is convenient for inserting the rubber strip 6; the lower plate 2 is provided with a protruding support bar 23, and the support bar 23 is opposite to the groove 13 of the upper plate 1; the spring 4 can push the upper plate 1 upward, and the support bar 23 is located below the groove 13 at this time; when the upper plate 1 is pressed down, the support bar 23 is inserted into the groove 13, and the remaining depth of the groove 13 is equal to the thickness of the rubber strip 6, that is, the support bar 23 pushes the rubber strip 6 in the groove 13 upward, so that the rubber strip 6 is flush with the upper surface of the upper plate 1.

[0038] A heating groove (not shown) is arranged around the edge of the upper plate 1 or the lower plate 2, and a resistance wire is embedded in the heating groove. The resistance wire is used for heating to accelerate the curing of the glue between the rubber strip and the plate-shaped product, and improve the glue bonding rate and bonding quality.

[0039] The four vertices of the upper plate 1 and the lower plate 2 are provided with first positioning pin holes 14 and second positioning pin holes 24 which are opposite to each other and are opposite to the holes at the four vertices of the pole frame 5 , so as to facilitate positioning the pole frame 5 with the positioning pins 8 .

[0040] The adhesive strip pasting process includes the following steps:

[0041] S1. Use a glue dispenser to evenly dispense glue in the glue strip placement groove 51 of the pole frame 5, and keep the glue amount and spacing uniform;

[0042] S2, placing the rubber strip 6 in the groove 13 of the upper plate 1, and making the position of the rubber strip 6 in the middle of the groove 13 of the upper plate;

[0043] S3, the glue-coated side of the pole frame 5 faces the upper plate 1, and is aligned with the upper plate 1 and the lower plate 2, and is positioned by positioning pins to prevent the pole frame 5 from being offset. At this time, the position of the rubber strip 6 is aligned with the rubber strip placement groove 51 of the pole frame 5;

[0044] S4, placing the assembled upper plate 1, lower plate 2 and pole frame 5 on the workbench of the hydraulic equipment 7, starting the hydraulic equipment, the hydraulic equipment 7 drives the pressing plate 71 to move downward, and the pressing plate 71 presses on the upper plate 1, driving the upper plate 1 to descend, thereby reducing the distance between the upper plate 1 and the lower plate 2, so that the support strip 23 on the lower plate 2 is inserted into the groove 13, and the rubber strip 6 is pushed upward, so that the rubber strip 6 is in contact with the glue on the rubber strip placement groove 51 of the pole frame 5;

[0045] S5. After pressing for a period of time, the glue solidifies and the rubber strip 6 is automatically fixed on the pole frame 5, completing the process of applying the rubber strip. At the same time, in order to accelerate the curing of the glue, the resistance wire on the upper plate can be energized. After the resistance wire is energized and heated, the curing of the glue between the rubber strip and the plate product can be accelerated, thereby improving the working efficiency of applying the rubber strip.

[0046] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for sticking adhesive strips for plate-shaped products, characterized in that: It comprises an upper plate and a lower plate, and a plurality of springs are arranged between the upper plate and the lower plate; the upper plate is provided with a groove for accommodating a rubber strip, and the lower plate is provided with a protruding support strip, and the support strip is opposite to the groove of the upper plate; the spring can push the upper plate upward, and the support strip is located below the groove; when the upper plate is pressed downward, the support strip is inserted into the groove and pushes the rubber strip in the groove upward.

2. The adhesive strip sticking device for plate-shaped products according to claim 1, characterized in that: The depth of the groove at the upper plate is greater than the thickness of the rubber strip, and the difference is greater than 0.3 mm; when the upper plate is pressed down, the support strip is inserted into the groove, and the remaining depth of the groove is equal to the thickness of the rubber strip.

3. The adhesive strip sticking device for plate-shaped products according to claim 1, characterized in that: The upper plate is provided with a plurality of first positioning holes, and a circle of limiting step surfaces are provided in the first positioning holes; the lower plate is provided with a first positioning screw hole, and the positioning bolt passes through the first positioning hole and is threadedly engaged with the first positioning screw hole; under the action of the spring, the limiting step surface abuts against the head of the positioning bolt.

4. The adhesive strip sticking device for plate-shaped products according to claim 1, characterized in that: A heating groove is wound around the upper plate or the lower plate, and a resistance wire is buried in the heating groove.

5. The adhesive strip sticking device for plate-shaped products according to claim 1, characterized in that: The upper plate and the lower plate are provided with positioning pin holes for positioning the plate-type products.

6. The adhesive strip sticking device for plate-shaped products according to claim 1, characterized in that: It also includes a hydraulic device, on which a pressure plate is arranged, and an upper plate and a lower plate are located directly below the pressure plate.

7. A method for gluing a board-shaped product with a glue strip, characterized in that : Includes the following steps: S1. Apply glue evenly in the glue strip placement groove of the plate-type product; S2. Place the rubber strip in the groove of the upper plate; S3, place the glue-coated side of the plate-shaped product toward the upper plate, align it with the upper plate and the lower plate, and then position it using the positioning pins; S4, start the hydraulic equipment, the pressure plate moves down and presses the upper plate, the upper plate descends, and the support strip on the lower plate is inserted upward into the groove, and the rubber strip is pushed upward to fit with the glue on the rubber strip placement groove; S5. After continuous pressing for a period of time, the glue solidifies and the adhesive strip is automatically fixed on the board product, completing the adhesive strip pasting process.

8. A method for gluing a board-shaped product with a glue strip as claimed in claim 7, characterized in that In step S5, the resistance wire on the upper plate or the lower plate can be powered on to generate heat, thereby accelerating the curing of the glue between the rubber strip and the plate-shaped product.

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