A foldable membrane electrode plate packaging assembly and a manufacturing method thereof

Abstract

The present invention relates to a foldable membrane electrode plate packaging assembly, which includes an upper pressing plate, a lower pressing plate, a side pad, and a rubber band. The side pad is designed to be two groups on the left and right, and the two groups of side pads are symmetrically installed. The two groups of side pads are correspondingly installed at the two end positions between the upper pressing plate and the lower pressing plate. The side pad includes several layers of separator gaskets, the outer sides of two adjacent separator gaskets are connected, and the inner sides of two adjacent separator gaskets form an opening. The two ends of several membrane electrode plates are respectively inserted into the openings of the two adjacent separator gaskets. The outer sides of the upper pressing plate and the lower pressing plate are fastened together by rubber bands to form a packaging assembly. The advantage is that the several separator gaskets designed by the side pads can separate and protect the ends of several membrane electrode plates, fill the gaps between the ends, and prevent deformation and damage caused by touch; at the same time, the design of the upper and lower pressing plates further protects the safety of the membrane electrode plates.

Description

Technical Field

[0001] The present invention relates to the field of membrane electrode plate packaging, and in particular to a foldable membrane electrode plate packaging assembly and a manufacturing method thereof. Background Art

[0002] In the past, several membrane electrode plates needed to be packaged and boxed during transportation. The packaging method was to stack several membrane electrode plates together, tie them together with rubber bands, put them into vacuum packaging bags for vacuum sealing, and finally stack and box the vacuum-sealed membrane electrode plates together. The boxes were then transported. However, due to the structural problem of the membrane electrode plates themselves being thick in the middle and thin at the two ends, when this structure was stacked, the membrane electrode plates supported each other in the middle, but there was a gap between the two side ends of the membrane electrode plates. As a result, during transportation, the two ends of the stacked membrane electrode plates were deformed by external forces such as extrusion and collision, thereby damaging the membrane electrode plates and causing losses. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes a foldable membrane electrode plate packaging assembly and a manufacturing method thereof, which has a simple design and is easy to use, and solves the problem of easy damage at both ends of the membrane electrode plate after packaging.

[0004] The technical solution of the present invention:

[0005] A foldable membrane electrode plate packaging assembly, which includes an upper pressing plate, a lower pressing plate, side pads, and rubber bands. The side pads are designed to be two groups on the left and right, and the two groups of side pads are symmetrically installed. The two groups of side pads are correspondingly installed at the two end positions between the upper pressing plate and the lower pressing plate. The side pads include several layers of separator gaskets, the outer sides of two adjacent separator gaskets are connected, and the inner sides of two adjacent separator gaskets form an opening. The two ends of several membrane electrode plates are respectively inserted into the openings of the two adjacent separator gaskets. The outer sides of the upper pressing plate and the lower pressing plate are fastened together by rubber bands to form a packaging assembly.

[0006] The foldable membrane electrode plate packaging assembly further comprises a vacuum packaging bag, which is sleeved on the outside of one packaging assembly and is vacuumed inside the vacuum packaging bag.

[0007] The foldable membrane electrode plate packaging assembly also includes positioning columns for assisting the insertion of the membrane electrode plates. Positioning holes are designed at the four corners of the upper pressure plate and the lower pressure plate, and a through hole is designed in the middle of both ends of the separating gasket of the side pad. The positioning columns can be inserted into the positioning holes and the through holes.

[0008] A V-shaped notch, a U-shaped notch or an arc-shaped notch is designed in the middle of one inner side of the separation gasket; the width of the separation gasket is greater than the width of the membrane electrode plate.

[0009] A method for packaging a membrane electrode plate in a foldable membrane electrode plate packaging assembly, comprising the following steps:

[0010] 1) First, place the lower pressure plate on the workbench, and insert the positioning columns into the positioning holes at both ends of the lower pressure plate away from the operating side.

[0011] 2) Place the left and right side pads on both ends of the lower pressure plate respectively.

[0012] 3) Insert the membrane electrode plates into the openings of the two sets of side pads from bottom to top, and separate the two ends of adjacent membrane electrode plates with separators.

[0013] 4) Press the upper pressure plate onto the two sets of side pads, and the positioning holes of the upper pressure plate are correspondingly placed on the two positioning posts; then pass the remaining two positioning posts from top to bottom through the positioning holes of the upper pressure plate, the through holes of the side pads, and the positioning holes of the lower pressure plate to position the four corners.

[0014] 5) Put the rubber band on the outside of the upper and lower pressing plates and tie them together so that the upper and lower pressing plates clamp the left and right sets of side pads, and the left and right sets of side pads clamp the membrane electrode plates inserted at intervals to form a bundled assembly.

[0015] 6) Remove the four positioning pins, place the bundled components into a vacuum packaging bag, and vacuum the bag to seal the bundled components.

[0016] 7) Finally, place the vacuum-sealed components into packaging boxes and stack them for packing.

[0017] A method for manufacturing a side pad portion of a foldable membrane electrode plate packaging assembly, comprising the following steps:

[0018] 1) First, a plurality of rectangular sheet gaskets are punched out in sequence, each punching forming two symmetrical separator gaskets with the outer edges of the two separator gaskets connected. At this time, all through holes and V-shaped notches, U-shaped notches or arc-shaped notches are punched out to form a first intermediate.

[0019] 2) Place the first intermediate body into the folding tool and fold it in half. The two separators are folded and an opening is formed between the inner sides of the two separators. At this time, the second intermediate body is formed.

[0020] 3) Stacking a plurality of second intermediate bodies together, and forming a composite separator gasket by hot pressing adjacent separator gaskets, thereby forming a side gasket portion with single separator gaskets on the upper and lower sides and a plurality of composite separator gaskets in the middle.

[0021] The folding tool includes a folding knife, a guide column, a limiting protrusion and a base. A V-shaped groove is opened in the middle position on the base, and four guide columns are fixed on the base. Two guide columns are respectively installed on both sides of the V-shaped groove, and the four guide columns are rectangular. The folding knife is located above the V-shaped groove, and the lower end of the folding knife is designed to be a V-shaped blade. Two grooves are respectively designed on both sides of the blade of the folding knife. The inner sides of the guide columns on both sides of the folding knife correspond to the grooves on both sides of the folding knife. The base is also designed to position eight limiting protrusions of the rectangular sheet pad, two limiting protrusions form a group, and one group is designed for the four corners of the rectangular sheet pad. The two limiting protrusions in each group are respectively designed at the two sides of the corner of the rectangular sheet pad.

[0022] The hot pressing composite tooling includes an upper plate, a lower plate, an upper mold, a lower mold, a cylinder, and a temperature controller. The lower ends of the upper plate are connected to the upper ends of the lower plate through vertical supports. A cylinder is installed in the middle of the upper plate. The telescopic end of the lower end of the cylinder passes through the upper plate and is connected to the upper mold. The lower mold is installed on the upper plate and the lower mold is located below the upper mold. Heating wires and thermocouples are respectively installed in the upper mold and the lower mold, and the heating wires and thermocouples are respectively connected to the temperature controller through wires; a locating pin is designed on both sides of the upper mold, and the through hole of the separation gasket can be correspondingly sleeved on the locating pin. A locating pin hole matching the locating pin is designed on both sides of the upper mold.

[0023] The thickness of the single-piece separator is 0.125 mm, and the thickness of the composite separator is 0.25 mm.

[0024] The separation gasket is made of non-transparent plastic or transparent plastic.

[0025] The advantages of the present invention are:

[0026] 1. The side pads are designed to separate and protect the ends of several membrane electrode plates, fill the gaps between the ends, and prevent deformation and damage due to contact; at the same time, the upper and lower pressure plate designs further protect the safety of the membrane electrode plates.

[0027] 2. The foldable membrane electrode plate packaging assembly, combined with its packaging method, can package membrane electrode plates quickly and safely.

[0028] 3. The side pad production method of the foldable membrane electrode plate packaging assembly is reasonable and complete, simple and convenient to operate, and is combined with self-made folding tooling and hot pressing composite tooling to improve the production accuracy and efficiency of the side pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the present invention.

[0030] Figure 2 This is a schematic diagram of the membrane electrode plates being inserted between the several separators of the left and right side pads of the present invention. Figure 1.

[0031] Figure 3 This is a schematic diagram of the membrane electrode plates being inserted between the several separators of the left and right side pads of the present invention. Figure 2 .

[0032] Figure 4 It is a schematic diagram of the state of placing the upper pressing plate of the present invention.

[0033] Figure 5 It is a schematic diagram of the folding tool of the present invention.

[0034] Figure 6 It is a schematic diagram of the folding tool of the present invention after being folded in half.

[0035] Figure 7 It is a schematic diagram of the hot pressing composite tooling of the present invention. DETAILED DESCRIPTION

[0036] Reference Figure 1 A foldable membrane electrode plate packaging assembly, which includes an upper pressing plate 1, a lower pressing plate 2, a side pad 3, and a rubber band 4. The side pad 3 is designed to be two groups on the left and right, and the two groups of side pads 3 are symmetrically installed. The two groups of side pads 3 are correspondingly installed at the two end positions between the upper pressing plate 1 and the lower pressing plate 2. The side pad 3 includes several layers of separator gaskets 31, the outer sides of two adjacent separator gaskets 31 are connected, and the inner sides of two adjacent separator gaskets 31 form an opening. The two ends of several membrane electrode plates 5 are respectively inserted into the openings of the two adjacent separator gaskets 31. The outer sides of the upper pressing plate 1 and the lower pressing plate 2 are fastened together by rubber bands 4 to form a packaging assembly. The side pad design fills the gaps at both ends of the membrane electrode plate with separator gaskets, and the outer edges of the separator gaskets are connected, which can wrap the ends of the membrane electrode plate to prevent the outside from touching the ends of the membrane electrode plate. Even if the outside of the side pad is squeezed, the gaps between the membrane electrode plates are filled with separator gaskets and will not deform. It is safe and reliable. At the same time, upper and lower pressure plates are designed to clamp the side pads and membrane electrode plates to further protect the middle and ends of the membrane electrode plates, ensure the safety of the membrane electrode plates during packaging and transportation, and reduce unnecessary losses.

[0037] The foldable membrane electrode plate packaging assembly also includes a vacuum packaging bag, which is placed outside the packaging assembly and then evacuated inside. The vacuum packaging bag seals the bundled membrane electrode plates, further preventing them from shifting during transportation. The vacuum also prevents unwanted reactions in the air, thereby ensuring the lifespan of the membrane electrode plates.

[0038] Reference Figure 2-4The foldable membrane electrode plate packaging assembly also includes positioning posts 6 for assisting the insertion of the membrane electrode plate 5. Positioning holes 7 are designed at the four corners of the upper pressing plate 1 and the lower pressing plate 2. A through hole 32 is designed at the middle position of each end of the separator 31 of the side pad 3. The positioning posts 6 can be inserted into the positioning holes 7 and the through holes 32. The positioning post design facilitates the positioning of the side pad and the lower pressing plate, facilitates the insertion of the membrane electrode plate between the separators of the side pad, and finally facilitates the installation and positioning of the upper pressing plate, as well as the precise positioning of the upper pressing plate, side pad, lower pressing plate and membrane electrode plate. In this way, when the rubber band is tightened, the structure is more compact and convenient for packaging and transportation.

[0039] like Figure 2-3 The inner side of the separator 31 is designed with a V-shaped notch 33 or a U-shaped notch or an arc-shaped notch in the middle. The notch is designed to avoid the protrusion at the end of the membrane electrode plate for easy packaging; Figure 3 The width of the separation gasket 31 is greater than the width of the membrane electrode plate 5, and the width of the membrane electrode plate is less than or equal to the distance between the two through holes on the separation gasket.

[0040] Reference Figure 1-4 A method for packaging membrane electrode plates in a foldable membrane electrode plate packaging assembly comprises the following steps:

[0041] 1) First, place the lower pressing plate 2 on the workbench, and insert the positioning posts 6 into the positioning holes 7 at both ends of the lower pressing plate 2 away from the operating side.

[0042] 2) Place the left and right side pads 3 on both ends of the lower pressing plate 2 respectively.

[0043] 3) Inserting a plurality of membrane electrode plates 5 into the openings of the two sets of side pads 3 in sequence from bottom to top, and separating the two ends of adjacent membrane electrode plates 5 by a plurality of separation gaskets 31 .

[0044] 4) Press the upper pressing plate 1 onto the two sets of side pads 3, and the positioning holes 7 of the upper pressing plate 1 are correspondingly placed on the two positioning posts 6; then the remaining two positioning posts 6 are passed through the positioning holes 7 of the upper pressing plate 1, the through holes 32 of the side pads 3, and the positioning holes 7 of the lower pressing plate 2 from top to bottom, and perform four-corner positioning to ensure that the two end portions of the membrane electrode plate are respectively located between the two through holes 32 of the side pads on the corresponding sides.

[0045] 5) Put the rubber band 4 on the outside of the upper pressing plate 1 and the lower pressing plate 2 to bundle them so that the upper pressing plate 1 and the lower pressing plate 2 clamp the left and right sets of side pads 3, and the left and right sets of side pads 3 clamp the several membrane electrode plates 5 inserted at intervals to form a bundled assembly.

[0046] 6) Remove the four positioning posts 6, place the bundled components into a vacuum packaging bag, and evacuate the bag to seal the bundled components.

[0047] 7) Finally, place the vacuum-sealed components into packaging boxes and stack them for packing.

[0048] Reference Figure 5-7 A method for manufacturing a side pad portion of a foldable membrane electrode plate packaging assembly, comprising the following steps:

[0049] 1) First, a plurality of rectangular sheet gaskets are punched out in sequence, each punching forming two symmetrical separator gaskets 31 with the outer edges of the two separator gaskets 31 connected. At this time, the through holes 32 and the V-shaped notches 33 or U-shaped notches or arc-shaped notches are all punched out to form a first intermediate body.

[0050] 2) The first intermediate body is placed in a folding tool and folded in half. The two separators 31 are folded, and an opening is formed between the inner sides of the two separators. At this time, the second intermediate body is formed.

[0051] 3) Stacking several second intermediates together, and forming a composite separator 31 by hot pressing adjacent separators 31, thereby forming a side pad 3 with single separators 31 on the upper and lower sides and several composite separators 31 in the middle.

[0052] like Figure 5-6 The folding tool comprises a folding knife 11, a guide column 12, a limiting protrusion 13 and a base 14. A V-shaped groove 15 is opened in the middle position on the base 14, and four guide columns 12 are fixed on the base 14. Two guide columns 12 are respectively installed on both sides of the V-shaped groove 15, and the four guide columns 12 are rectangular. The folding knife 11 is located above the V-shaped groove 15, and the lower end of the folding knife 11 is designed to be a V-shaped blade. Two grooves are respectively designed on both sides of the blade of the folding knife 11. The inner sides of the guide columns 12 on both sides of the folding knife 11 correspond to the grooves on both sides of the folding knife 11 respectively. The base 14 is also designed to position eight limiting protrusions 13 of the rectangular sheet pad. Two limiting protrusions 13 form a group, and one group is designed for the four corners of the rectangular sheet pad. The two limiting protrusions 13 of each group correspond to the positions on both sides of the corner; the folding knife is designed to be manually operated, and a handle is designed on it. It can also be designed to be a cylinder to control the lifting and lowering of the folding knife. When in use, the folding knife is manually lifted up, and the punched rectangular sheet pad (first intermediate body) is placed on the base, and the position is limited by the limiting protrusion. The folding knife is lowered, and the V-shaped blade at the lower end of the folding knife cooperates with the V-shaped groove to squeeze and fold the rectangular sheet pad to form the second intermediate body; the folding knife moves up and down under the guidance of four guide pillars, and the grooves lean against the guide pillars for cooperation.

[0053] like Figure 7The hot pressing composite tooling includes an upper plate 21, a lower plate 22, an upper mold 23, a lower mold 24, a cylinder 25, and a temperature controller 26. The lower ends of the upper plate 21 are connected to the upper ends of the lower plate 22 on both sides through vertical supports 28. A cylinder 25 is installed in the middle of the upper plate 21. The telescopic end of the lower end of the cylinder 25 passes through the upper plate 21 and is connected to the upper mold 23. The lower mold 24 is installed on the upper plate 22 and the lower mold 24 is located below the upper mold 23. A heating wire and a thermocouple are respectively installed in the upper mold 23 and the lower mold 24, and the heating wire and the thermocouple are respectively connected to the temperature controller 26 through wires; a positioning pin 27 is designed on both sides of the upper mold 24, and the through hole 32 of the separation gasket 31 can be correspondingly sleeved on the positioning pin 27. A positioning pin hole matching the positioning pin 27 is designed on both sides of the upper mold 23. When in use, the two separators of the second intermediate are overlapped and placed on the lower mold. The through holes of the separators are sleeved on the positioning pins 27 for positioning. The upper mold is pressed down by the cylinder. The positioning pin holes of the upper mold cooperate with the positioning pins 27 of the lower mold for positioning. The upper mold and the lower mold squeeze the two separators together. At this time, the temperature controller is turned on. The temperature controller controls the heating wires in the upper mold and the lower mold to heat the two separators. After heating to the set temperature, the thermocouple feeds back the temperature to the temperature controller. The temperature controller controls the heating wire to stop heating, maintains the pressure for a period of time, and then the cylinder drives the upper mold to reset. The two separators are hot-pressed and combined into one piece to form a composite separator. Figure 7 The lower display die may also be designed with a V-shaped protrusion, a U-shaped protrusion, or an arc-shaped protrusion to match the V-shaped notch 33, the U-shaped notch, or the arc-shaped notch formed by punching the first intermediate body.

[0054] The thickness of the single-piece separator is 0.125mm, and the thickness of the composite separator is 0.25mm. The thickness of the composite separator is the same as the gap between adjacent membrane electrode plates. This design ensures that when external forces act on the ends of the membrane electrode plates, the separator can provide support and distribute the forces, thus preventing deformation of the ends of the membrane electrode plates.

[0055] The separator 31 is made of non-transparent plastic or transparent plastic. Plastic is light and hard, and is not easy to wear the membrane electrode plate. Plastic is easy to process and manufacture the side pads, and is low in cost. Transparent material allows personnel to observe the condition of the membrane electrode plate.

Claims

1. A foldable membrane electrode plate packaging assembly, characterized in that: It comprises an upper pressing plate (1), a lower pressing plate (2), a side pad (3), and a rubber band (4). The side pad (3) is designed to be two groups on the left and right, and the two groups of side pads (3) are symmetrically installed. The two groups of side pads (3) are correspondingly installed at the two end positions between the upper pressing plate (1) and the lower pressing plate (2). The side pad (3) comprises a plurality of layers of separation pads (31). The outer sides of two adjacent separation pads (31) are connected, and the inner sides of two adjacent separation pads (31) form an opening. The two ends of a plurality of membrane electrode plates (5) are respectively inserted into the openings of the two adjacent separation pads (31). The outer sides of the upper pressing plate (1) and the lower pressing plate (2) are fastened together by the rubber band (4) to form a packaging component. The foldable membrane electrode plate packaging The component also includes a vacuum packaging bag, which is sleeved on the outside of the packaging component and is vacuumed inside the vacuum packaging bag; the foldable membrane electrode plate packaging component also includes a positioning column (6) for inserting the auxiliary membrane electrode plate (5), and the four corners of the upper pressing plate (1) and the lower pressing plate (2) are respectively designed with positioning holes (7), and the middle positions of the two ends of the separation gasket (31) of the side pad (3) are respectively designed with a through hole (32), and the positioning column (6) can be inserted into the positioning hole (7) and the through hole (32); the middle of one side of the inner side of the separation gasket (31) is designed with a V-shaped notch (33) or a U-shaped notch or an arc-shaped notch; the width of the separation gasket (31) is greater than the width of the membrane electrode plate (5); The method for packaging membrane electrode plates using a foldable membrane electrode plate packaging assembly comprises the following steps: (1) First, place the lower pressing plate (2) on the workbench. Insert the positioning columns (6) into the positioning holes (7) at both ends of the lower pressing plate (2) away from the operating side. 2) Place the left and right side pads (3) on both ends of the lower pressure plate (2). 3) inserting a plurality of membrane electrode plates (5) into the openings of the two sets of side pads (3) in sequence from bottom to top, and separating the two ends of adjacent membrane electrode plates (5) by a plurality of separation gaskets (31). 4) Press the upper pressing plate (1) onto the two sets of side pads (3), and the positioning holes (7) of the upper pressing plate (1) are correspondingly sleeved on the two positioning posts (6); then the remaining two positioning posts (6) are passed through the positioning holes (7) of the upper pressing plate (1), the through holes (32) of the side pads (3), and the positioning holes (7) of the lower pressing plate (2) from top to bottom, and perform four-corner positioning to ensure that the two ends of the membrane electrode plate are respectively located between the two through holes (32) of the side pads on the corresponding sides; 5) Put the rubber band (4) on the outer side of the upper pressing plate (1) and the lower pressing plate (2) to tie them together so that the upper pressing plate (1) and the lower pressing plate (2) clamp the left and right sets of side pads (3), and the left and right sets of side pads (3) clamp the membrane electrode plates (5) inserted at intervals to form a bundled assembly. 6) Remove the four positioning posts (6), place the bundled components into a vacuum packaging bag, and evacuate the bag to seal the bundled components; 7) Finally, place the vacuum-sealed components into packaging boxes and palletize them; A method for manufacturing a side pad portion of a foldable membrane electrode plate packaging assembly comprises the following steps: 1) First, a plurality of rectangular sheet gaskets are punched out in sequence, and each punching process forms two symmetrical separation gaskets (31) and the outer sides of the two separation gaskets (31) are connected. At this time, the through holes (32) and the V-shaped notches (33) or U-shaped notches or arc-shaped notches are all punched out to form a first intermediate body; 2) Place the first intermediate body into the folding tool and fold it in half. The two separators (31) are folded, and an opening is formed between the inner sides of the two separators. At this time, the second intermediate body is formed. 3) stacking a plurality of second intermediate bodies together and forming a composite separator (31) by hot pressing the adjacent separators (31) through a composite tool, thereby forming a side pad (3) having single separators (31) on the upper and lower sides and a plurality of composite separators (31) in the middle; The folding tool comprises a folding knife (11), a guide post (12), a limiting protrusion (13) and a base (14). A V-shaped groove is provided in the middle of the base (14). Four guide posts (12) are fixed on the base (14). Two guide posts (12) are respectively installed on both sides of the V-shaped groove and the four guide posts (12) are rectangular. The folding knife (11) is located above the V-shaped groove. The lower end of the folding knife (11) is designed to be a V-shaped blade. Two grooves are respectively designed on both sides of the blade of the folding knife (11). The inner sides of the guide posts (12) on both sides of the folding knife (11) are respectively located in the grooves on both sides of the folding knife (11). The base (14) is also designed with eight limiting protrusions (13) for positioning the rectangular sheet pad. Two limiting protrusions (13) form a group. One group is designed for each of the four corners of the rectangular sheet pad. The two limiting protrusions (13) in each group are respectively designed at the positions on both sides of the corner of the rectangular sheet pad. The hot pressing composite tooling comprises an upper plate (21), a lower plate (22), an upper die (23), a lower die (24), a cylinder (25), and a temperature controller (26). The lower ends of both sides of the upper plate (21) are connected to the upper ends of both sides of the lower plate (22) through vertical supports respectively. A cylinder (25) is installed in the middle of the upper part of the upper plate (21). The telescopic end of the lower end of the cylinder (25) passes through the upper plate (21) and is connected to the upper die (23). The lower die (24) is installed on the upper part of the lower plate (22) and the lower die (24) is located below the upper die (23). A heating wire and a thermocouple are installed in the upper die (23) and the lower die (24), respectively. The heating wire and the thermocouple are connected to the temperature controller (26) through wires respectively. A positioning pin is designed on both sides of the upper part of the lower die (24). The through hole (32) of the separation gasket (31) can be correspondingly sleeved on the positioning pin. A positioning pin hole matching the positioning pin is designed on both sides of the upper part of the upper die (23). The thickness of the single-piece separator is 0.125 mm, and the thickness of the composite separator is 0.25 mm; The separation gasket (31) is made of non-transparent plastic or transparent plastic.

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