Multifunctional film coating clamp jig and film coating equipment

Abstract

The utility model discloses a multifunctional film coating clamp jig and film coating equipment, the multifunctional film coating clamp jig comprises: a frame body, the frame body encloses an installation space, the installation space is used for accommodating a film coating object installed on the frame body; and the shielding body is used for shielding a residual area except a preset film coating area on the film coating object in the mounting space when the shielding body is mounted on the frame body. According to the utility model, the requirements of multifunctional clamping and multi-purpose clamping can be met, so as to realize coating and patterned transfer coating of materials with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to a multifunctional coating jig and coating equipment. Background Art

[0002] In the coating industry, jigs are widely used tools on coating equipment for clamping and fixing coating products. However, general jigs are designed for specific products, thus limiting their multi-functional usage scenarios. For example, usually one type of jig can only be applicable to the clamping of one product. When there are changes in the size range of the product, or when there are multi-functional usage scenarios such as patterned coating, it will be difficult to reuse the original jig for clamping, and it is necessary to replace the applicable jig accordingly.

[0003] Therefore, the design of existing jigs has great limitations. In order to expand their application scenarios, it is necessary to design a new type of multi-functional jig to be applicable to coating in diverse scenarios. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned defects existing in the prior art, and provide a multi-functional coating jig and coating equipment.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] The utility model provides a multi-functional coating jig, including:

[0007] A frame body, the frame body encloses an installation space for accommodating a coating object installed on the frame body;

[0008] A shielding body, when installed on the frame body, is used to shield the remaining area outside the predetermined coating area on the coating object in the installation space.

[0009] Further, it further includes an installation structure for installing the shielding body on the frame body and installing the coating object on the frame body.

[0010] Further, the installation structure includes a first installation sub-structure for installing the shielding body. The first installation sub-structure includes a first hanging structure provided on one of the frame body and the shielding body, and a second hanging structure provided on the other of the frame body and the shielding body and used for hanging and cooperating with the first hanging structure.

[0011] Further, the frame body is enclosed by two opposite first side frames and two second side frames correspondingly connected to both ends of the two first side frames. The first hanging structures are arranged in pairs on the two first side frames and are arranged in multiple pairs in sequence along the two ends of the first side frame. The second hanging structures are arranged in pairs on both ends of the shielding body, or the second hanging structures are arranged in pairs on the two first side frames and are arranged in multiple pairs in sequence along the two ends of the first side frame, and the first hanging structures are arranged in pairs on both ends of the shielding body.

[0012] Further, the first hanging structure includes a hook, and the second hanging structure includes a double-hole hanging hole for engaging with the hook. The hook includes a body and a cap portion provided at the end of the body. The double-hole hanging hole includes a guiding hole and a fixing hole that are communicated with each other. The guiding hole is used for hanging the hook, and the fixing hole is used for fixing the hook after it is hung.

[0013] Further, each pair of the double-hole hanging holes is arranged in a mirror image with respect to each other, and the two fixing holes in each pair of the double-hole hanging holes are obliquely arranged on one side of the guiding hole with respect to the central connection line of the two guiding holes.

[0014] Further, when the shielding body needs to be installed, the shielding body is installed on at least one side between the two second side frames, and the number of installed shielding bodies is one or more; when the number of installed shielding bodies on any one side is one, the shielding body is further fixed to the second side frame through a fastening structure; or, when the number of installed shielding bodies on any one side is multiple, the shielding bodies on the same side are in close contact with each other and form an interlock, and the outermost shielding body is further fixed to the second side frame through a fastening structure.

[0015] Further, the shielding body is provided with a hollow pattern for patterning coating.

[0016] Further, fixing shafts are correspondingly provided on the two first side frames for driving the frame body to rotate.

[0017] The present utility model further provides a coating device, including a cavity and a turntable provided in the cavity. The turntable uses the above-mentioned multifunctional coating jig for coating a coating object installed on the multifunctional coating jig.

[0018] As can be seen from the above technical solution, in the present utility model, by designing a shielding body, according to the coating requirements of coating objects of different sizes, the shielding body can be correspondingly installed on the frame of the coating jig, which can meet the requirements of multi-functional clamping and multi-purpose clamping. Moreover, according to actual needs, the specific size of the shielding body can be combined with the coating object to effectively shield the area outside the coating area. Further, when multiple shielding bodies are used in combination, continuous interlocking between multiple shielding bodies can also be achieved through the unique design of the installation structure (the second installation sub-structure), ensuring the use stability of the shielding body; by setting a hollow pattern on the shielding body, the coating and patterned transfer coating requirements of coating objects of different sizes are fully met. The present utility model has the following advantages:

[0019] (1) Strong adaptability. The multi-functional jig of the present utility model adopts a combination of an introduction hole (large hole) and a fixing hole (small hole) and the design of a capped hook for installing the shielding body, which can adapt to coating objects of different sizes. Whether it is a plate-shaped product or a planar product of standard size or non-standard size (such as the bipolar plate of a fuel cell), effective clamping can be achieved by adjusting the combination method of the shielding body, greatly improving the adaptability of the jig.

[0020] (2) Wide application scenarios, and the free combination form can achieve patterned coating and shielding. The multi-functional jig of the present utility model can not only be used for simple planar coating, but also for complex patterned coating, meeting different coating requirements, expanding the application scenarios, improving production efficiency, and ensuring small fluctuations in the overall coating surface, thereby optimizing the stability during coating.

[0021] (3) High coating quality. The multi-functional jig of the present utility model can achieve precise positioning and fixing of the coating object by adjusting the combination method of the shielding body, thereby ensuring the uniformity and quality of the coating, improving the performance and service life of the coating object. At the same time, through the design of the structure, when the shielding bodies are combined continuously, only one shielding body needs to be fixed to ensure the stability of the remaining shielding bodies.

[0022] (4) Reducing production costs. Since the multi-functional jig of the present utility model can adapt to coating objects of different sizes, there is no need to equip a set of special jigs for each size of coating object, thus greatly reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figures 1 - 4 It is a schematic structural diagram of a multi-functional coating jig according to a preferred embodiment of the present utility model.

[0024] Figure 5 It is a schematic diagram of a preferred embodiment of the present utility model Figure 1 The enlarged structural diagram of the shielding body in it.

[0025] Figure 6 A partial enlarged structural schematic diagram of part A in a preferred embodiment of the present utility model Figure 4

[0026] Figure 7 An enlarged schematic diagram of the installation state of the shielding body located on the left side in a preferred embodiment of the present utility model Figure 4

[0027] Figure 8 An enlarged schematic diagram of the installation state of the shielding body located on the right side in a preferred embodiment of the present utility model Figure 4

[0028] Figure 9 A structural schematic diagram of a hook in a preferred embodiment of the present utility model Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present utility model belongs. The words such as "including" used herein are intended to mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items.

[0030] The following further details the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0031] Refer to Figure 1 and Figure 5 A multifunctional coating jig of the present utility model includes a frame body 1 and a shielding body 2 used in combination with the frame body 1.

[0032] Among them, the frame body 1 encloses an installation space 3 (installation window) inside the frame body 1. The installation space 3 is used to accommodate a coating object (not shown) installed on the frame body 1. That is, when the coating object is installed on the frame body 1, the coating object is in the installation space 3.

[0033] ​​​The shielding body 2 is used to shield the remaining area of the installation space 3 other than the predetermined coating area on the coating object installed in the installation space 3 on the frame body 1 when it is installed on the frame body 1 and used in combination with the frame body 1. In other words, when the predetermined coating area occupies the entire installation space 3, the shielding body 2 is not required; while when the predetermined coating area is smaller than the installation space 3, resulting in a certain area of non-coating area, the shielding body 2 is needed to shield the remaining area (non-coating area) of the installation space 3 other than the predetermined coating area.

[0034] Therefore, the multi-functional coating jig of the present utility model can be applicable to clamping coating objects of different sizes. When the size of the coating object corresponds to the size of the installation space 3, the coating object can be installed on the frame body 1 and directly coated; while when the size of the coating object is smaller than the size of the installation space 3 (i.e., replacing the coating object with different specifications), after installing the shielding body 2 on the remaining area (the remaining space of the installation space 3) outside the installation area of the coating object, the installed coating object can be coated. Thus, the free combination of the shielding body 2 and the frame body 1 can be realized, meeting the requirements of multi-functional clamping and multi-purpose clamping, such as coating and patterned transfer coating of coating objects of different sizes.

[0035] Among them, the size of the frame body 1 can be designed to correspond to the maximum size of the coating object; the shielding body 2 can be customized according to the used scenarios and purposes to cooperate with the frame body 1. In this way, even when clamping a coating object with a smaller size on the frame body 1 with a fixed size, the shielding body 2 can be used to shield the empty installation space 3 outside the coating object, thus meeting the requirements of multi-functional and multi-purpose clamping and coating, and therefore there is no need to equip a set of dedicated jigs for each size of coating object, greatly reducing the production cost.

[0036] In some embodiments, a multi-functional coating jig of the present utility model further includes an installation structure. The installation structure is used to install the shielding body 2 on the frame body 1 and install the coating object on the frame body 1.

[0037] Reference Figure 1 and Figure 5 。In some embodiments, the installation structure includes a first installation sub-structure 4 for installing the shielding body 2. The first installation sub-structure 4 includes a first hanging structure 41 provided on the frame body 1 and a second hanging structure 42 provided on the shielding body 2 and used for hanging and cooperating with the first hanging structure 41.

[0038] In some embodiments, the frame body 1 is enclosed by two upper and lower opposite first side frames 11 and two left and right opposite second side frames 12 correspondingly connected to both ends of the two first side frames 11. For example, the two first side frames 11 and the two second side frames 12 enclose a rectangular frame body 1, but it is not limited thereto.

[0039] In some embodiments, there are multiple first hanging structures 41. The first hanging structures 41 are correspondingly provided on the two first side frames 11 and are arranged in multiple pairs along the two ends direction (length direction) of the first side frames 11. The second hanging structures 42 are provided in pairs at corresponding positions on the upper and lower ends of the shielding body 2.

[0040] Reference Figure 1 、 Figure 5 and Figure 9 。In some embodiments, the first hanging structure 41 includes a hook 411, and the second hanging structure 42 includes a double-hole hanging hole 421 for engaging with the hook 411. The hooks 411 are correspondingly provided on the two first side frames 11 and are arranged in multiple pairs along the two ends direction of the first side frames 11, that is, each hook 411 provided on the upper first side frame 11 is paired with a corresponding hook 411 provided on the lower first side frame 11. The double-hole hanging holes 421 are provided in pairs at the upper and lower ends of the shielding body 2. That is, in a pair of double-hole hanging holes 421, one double-hole hanging hole 421 provided on the upper end of the shielding body 2 is used to engage with one hook 411 provided on the upper first side frame 11 in a pair of hooks 411, and the other double-hole hanging hole 421 provided on the lower end of the shielding body 2 is used to engage with the other hook 411 provided on the lower first side frame 11 in a pair of hooks 411.

[0041] Wherein, the hook 411 includes a body 4111 and a cap portion 4112 provided at the end of the body 4111. The tail of the body 4111 is fixedly connected to one side surface of the first side frame 11. The cap portion 4112 of the hook 411 can be integrally processed with the body 4111 or welded to the end of the body 4111. The hook 411 can be threadedly connected or welded to the first side frame 11 through the tail of the body 4111, so that the hook 411 protrudes on one side surface of the first side frame 11. For example, the hook 411 can be a thumb tack structure, and the cap portion 4112 is the head of the thumb tack structure, and the body 4111 is the nail body of the thumb tack structure.

[0042] The double-hole hanging hole 421 includes an inlet hole 4211 (large hole) and a fixing hole 4213 (small hole) with different sizes and connected to each other. The inlet hole 4211 and the fixing hole 4213 partially intersect to form a communication, and a bayonet 4212 with a diameter smaller than the sizes of the inlet hole 4211 and the fixing hole 4213 is formed at the communication. Among them, the inlet hole 4211 is used for the hook 411 to be hung in, and the fixing hole 4213 is used for fixing the hook 411 after it is hung in.

[0043] The introduction holes 4211 and the fixing holes 4213 can be circular or polygonal holes, etc., and the hook 411 has a cross-sectional shape adapted to the introduction holes 4211 and the fixing holes 4213.

[0044] Taking the introduction holes 4211 and the fixing holes 4213 as circular holes and the hook 411 (the main body 4111 and the cap portion 4112) having a circular cross-section adapted to the introduction holes 4211 and the fixing holes 4213 as an example, the diameter of the introduction hole 4211 is larger than the diameter of the fixing hole 4213, the diameter of the cap portion 4112 is larger than the diameter of the main body 4111, the diameter of the cap portion 4112 is larger than the diameter of the fixing hole 4213 and smaller than the diameter of the introduction hole 4211, and the diameter of the main body 4111 is smaller than the clearance of the bayonet 4212.

[0045] When installing the shielding body 2, align the introduction holes 4211 at both ends of the shielding body 2 with the cap portions 4112 of one pair of hooks 411 on the two first side frames 11 respectively, and make the introduction holes 4211 on the shielding body 2 pass through the cap portions 4112; then, move the shielding body 2 so that the main body 4111 of the hook 411 enters the fixing hole 4213 through the bayonet 4212. Since the diameter of the cap portion 4112 of the hook 411 is larger than the diameter of the fixing hole 4213 and the cap portion 4112 is located outside the fixing hole 4213, the shielding body 2 can be longitudinally installed on the upper and lower two first side frames 11 of the frame body 1.

[0046] In some embodiments, each pair of double-hole hanging holes 421 on the shielding body 2 are arranged in a mirror image with respect to each other (with respect to the horizontal short axis direction of the shielding body 2), and the two fixing holes 4213 in each pair of double-hole hanging holes 421 are obliquely arranged on one side of the corresponding introduction hole 4211 with respect to the center line connecting the two introduction holes 4211. In other words, the double-hole hanging holes 421 are arranged on both ends of the shielding body 2 in a direction forming a certain angle with the horizontal first side frame 11. That is, the center line connecting the introduction hole 4211 and the fixing hole 4213 forms a certain angle with the horizontal direction. The angle (tilt angle) can be, for example, 30 to 60 degrees. Specifically, the fixing hole 4213 in the double-hole hanging hole 421 provided at the upper end of the shielding body 2 is obliquely located on the side of the corresponding introduction hole 4211 close to the corresponding end of the shielding body 2 at an inclined angle, and the fixing hole 4213 in the double-hole hanging hole 421 provided at the lower end of the shielding body 2 is obliquely located on the side of the corresponding introduction hole 4211 away from the corresponding end of the shielding body 2 at an inclined angle, that is, the fixing hole 4213 is located on the upper oblique side of the corresponding introduction hole 4211.

[0047] In some other embodiments, the first installation sub-structure 4 includes a first hanging structure 41 (such as the above-mentioned hook 411) provided on the shielding body 2, and a second hanging structure 42 (such as the above-mentioned double-hole hanging hole 421) provided on the frame body 1 and used for hanging and cooperating with the first hanging structure 41. For example, the double-hole hanging holes 421 are provided in pairs on two first side frames 11 and are arranged in multiple pairs in sequence along the two ends of the two first side frames 11, and the hooks 411 are provided in pairs on the corresponding two ends of the shielding body 2. The difference is that at this time, the fixing hole 4213 will be located obliquely below the corresponding guiding hole 4211.

[0048] The following takes the first hanging structure 41 (such as the above-mentioned hook 411) provided on the first side frame 11 and the second hanging structure 42 (such as the above-mentioned double-hole hanging hole 421) correspondingly provided on the shielding body 2 as an example to further illustrate the present utility model.

[0049] In some embodiments, when the shielding body 2 needs to be installed, the shielding body 2 is installed on at least one side between two second side frames 12, and the installation quantity of the shielding body 2 is one or more.

[0050] In some embodiments, a pair of double-hole hanging holes 421 are provided on the two ends of a shielding body 2 for hanging and cooperating with any one pair of the multiple pairs of hooks 411 provided on the two first side frames 11, as Figure 1 、 Figure 4 shown. This situation can be applicable to the use scenarios where the lateral width to be blocked is relatively narrow, such as the situation where using a shielding body 2 with a relatively narrow width can meet the shielding requirement (refer to Figure 1 ), or the situation where multiple shielding bodies 2 are combined for shielding (refer to Figure 4 ).

[0051] In some embodiments, multiple pairs of double-hole hanging holes 421 are provided side by side on the two ends of a shielding body 2 for hanging and cooperating with any adjacent and equal-numbered pairs of hooks 411 among the multiple pairs of hooks 411 provided on the two first side frames 11, as Figure 2 shown. This situation can be applicable to the use scenarios where the lateral width to be blocked is relatively wider than the above embodiments, such as the situation where using a shielding body 2 with a relatively wide width can meet the shielding requirement.

[0052] In some embodiments, a pair of double-hole hanging holes 421 are provided on the two ends of a shielding body 2 for hanging and cooperating with one of the multiple pairs of hooks 411 provided on the two first side frames 11, and multiple shielding bodies 2 can be combined and used in a side-by-side installation manner, as Figure 4As shown. In this case, the width of each shielding body 2 can be relatively narrow, and according to the different sizes of different coating objects, by selecting an appropriate number of shielding bodies 2 for combined use, different shielding widths can be formed. Thus, it is only necessary to batch-produce one width specification of the shielding body 2 and use them in combination to meet the clamping and shielding requirements of coating objects with multiple width specifications. In this way, there is no need to customize shielding bodies 2 with multiple width specifications to adapt to multiple shielding widths, which can not only reduce the manufacturing cost of the shielding body 2, but also the shielding bodies 2 are universal and very convenient to interchange. Before use, according to the shielding width, the number of shielding bodies 2 used can be quickly calculated.

[0053] It should be noted that the multi-functional coating jig is used in a rotating state. Therefore, when different specifications of coating objects are installed on the frame 1, they generally have left-right symmetry. In this way, when the width of the coating object is less than the width of the installation space 3 (i.e., the distance between the two second side frames 12), it is necessary to simultaneously shield the remaining installation space 3 (i.e., the non-coating area) exposed on both sides of the coating object. Therefore, shielding bodies 2 need to be used on both the left and right sides to shield the non-coating area, as Figure 4 shown, which shows an example of using multiple shielding bodies 2 on both the left and right sides to shield the non-coating area.

[0054] It should also be noted that the above embodiments are described for the case where the entire surface of the coating object is the predetermined coating area. When only a part of the surface of the coating object needs to be coated, for example, when local blanking needs to be performed on one or both sides of the coating object, the shielding body 2 also needs to be installed on these areas to shield these blank areas.

[0055] Refer to Figure 3 . In some embodiments, when patterned coating needs to be performed on a part of the surface of the coating object, corresponding hollow patterns 5 can be processed on the shielding body 2, and using the principle of patterned transfer coating, patterned coating can be performed to deposit a pattern film layer corresponding to the hollow pattern 5 at the corresponding position on the surface of the coating object.

[0056] In some embodiments, when the number of shielding bodies 2 installed on any one side of the two second side frames 12 is one, the shielding body 2 is also fixed to the corresponding second side frame 12 through a fastening structure. For example, for Figures 1 - 3 the situation shown in which one shielding body 2 is installed, fasteners such as chucks can be used to fix the shielding body 2 to the second side frame 12 on that side.

[0057] In some embodiments, when the number of shielding bodies 2 installed on any one side of the two second side frames 12 is multiple, for example Figure 4The situation where a plurality of shielding bodies 2 are respectively installed on both sides is shown, and the shielding bodies 2 on the same side are arranged and installed in a form of close contact with each other.

[0058] It should be noted that when installing a plurality of shielding bodies 2, the shielding bodies 2 can be installed in sequence from the inside to the outside. Taking Figure 4 as an example, on each side, after the first shielding body 2 located at the innermost side is hooked on the hook 411, due to the self-weight of the shielding body 2, the hook 411 can be stably located in the fixing hole 4213; when the second shielding body 2 is continuously hooked, the second shielding body 2 can be closely attached to the side surface of the first shielding body 2 after being hooked, and so on. In this way, the position of the previous shielding body 2 can be locked by installing the subsequent shielding body 2, and the last installed shielding body 2 is fixed to the second frame 12 on this side by a fastening structure, so as to form continuous interlocking between the shielding bodies 2. Only by fixing the last installed shielding body 2 can the stability of all the shielding bodies 2 be satisfied. The design of the above-mentioned continuity and interlocking structure can meet the free left-right combination on the frame 1, fully meeting the requirements of multiple functions and multiple purposes. Figure 6 shows Figure 4 the partial enlarged structure of part A in, and it can be seen that after adopting the above installation method, a seamless and close arrangement structure is formed between the shielding bodies 2 on the same side. It can be reasonably designed according to the width of the shielding body 2, the size of the double-hole hanging hole 421, and the spacing of the hooks 411 to achieve the above effect.

[0059] Figure 7 and Figure 8 respectively show Figure 4 the installation states of a plurality of shielding bodies 2 located on the left side in, and the installation state of one of the shielding bodies 2 located on the right side. It can be seen that when installing the shielding bodies 2 in sequence from the inside to the outside as described above, since the installation directions on the left and right sides are opposite, the orientations of the double-hole hanging holes 421 on the shielding bodies 2 on the left and right sides are also opposite (the orientation of the double-hole hanging hole 421 on the shielding body 2 located on the left side points to the upper left, and the orientation of the double-hole hanging hole 421 on the shielding body 2 located on the right side points to the upper right). It can be simply achieved by turning over the shielding body 2 when installing the shielding body 2 on the right side.

[0060] Refer to Figure 4 . In some embodiments, fixing shafts 7 are correspondingly provided on the two first frames 11 for driving the frame 1 to rotate. Preferably, the fixing shafts 7 are located on the vertical axes of the two first frames 11 to maintain the symmetry of the frame 1 during rotation. Among them, the fixing shaft 7 includes a first fixing shaft 71 provided on the upper first frame 11 and a second fixing shaft 72 provided on the lower first frame 11.

[0061] Refer toFigure 4 。In some embodiments, the mounting structure further includes a second mounting sub-structure 6 for mounting the object to be coated. The second mounting sub-structure 6 includes a plurality of pairs of limiting grooves 61 provided along the outer sides of the two first side frames 11, and two pairs of double-headed elastic hooks (not shown). Among them, each pair of limiting grooves 61 is used for the respective hanging connection of a pair of double-headed elastic hooks. One end of each double-headed elastic hook is used for hanging connection with a corresponding limiting groove 61 on the corresponding side, and the other end is used for hanging connection with a corresponding positioning hole on the object to be coated. In this way, the mounted object to be coated can be tensioned in the mounting space 3 inside the frame body 1. For more details, reference can be made to the disclosure content of a coating fixture with the application number CN202322278269.3.

[0062] In some embodiments, the object to be coated can be a plate-shaped product or a planar product with standard dimensions or non-standard dimensions. For example, the object to be coated can be a bipolar plate for a proton exchange membrane fuel cell, and bipolar plates with different width dimensions can be mounted on the multifunctional coating fixture of the present utility model. The specifications of the bipolar plates are generally measured by width (the height is generally a fixed value). Therefore, the height of the second side frame 12 of the frame body 1 can be determined, and the length of the first side frame 11 (i.e., the distance between the two second side frames 12) can be made to meet the clamping requirements of the bipolar plate with the maximum width specification, so that the same multifunctional coating fixture can be used to meet the clamping requirements of bipolar plates with various width specifications.

[0063] For example, when the size of the bipolar plate corresponds to the size of the mounting space 3 on the frame body 1, when the bipolar plate is installed in the mounting space 3, when the bipolar plate occupies the entire mounting space 3, and when the predetermined coating area is the entire surface of the bipolar plate, there is no need to install the shielding body 2 on the frame body 1; when the predetermined coating area is a partial surface of the bipolar plate, for example, when there is a non-coating area with a certain width between at least one side boundary of the predetermined coating area and the same-side edge of the bipolar plate, it is necessary to install a shielding body 2 with a corresponding width at the corresponding position on the frame body 1 to shield the above non-coating area and prevent a film layer from being deposited on the surface of the bipolar plate in the above non-coating area during coating.

[0064] For another example, when the width of a certain specification of bipolar plate is less than the distance between the two second side frames 12, the shielding body 2 can be provided on both sides of the bipolar plate to shield the mounting space 3 exposed outside both sides of the bipolar plate, thereby ensuring the stability of the coating process.

[0065] For another example, when patterned coating is required on a partial surface of the bipolar plate, for example Figure 3 the shielding body 2 shown, by processing a corresponding hollow pattern 5 on the shielding body 2 and using the principle of patterned transfer coating, patterned coating can be carried out to deposit a film layer with a corresponding pattern on the corresponding position on the surface of the bipolar plate.

[0066] For another example, when it is necessary to coat both the front and back surfaces of a bipolar plate simultaneously, a shielding body 2 can be correspondingly installed on the back surface of the frame body 1 shown in Figures 1 - 4 to achieve the required double-sided coating.

[0067] In some embodiments, the shielding body 2 can be a strip-shaped shielding sheet.

[0068] A coating device of the present utility model includes a cavity and a turntable disposed in the cavity. The turntable uses the multifunctional coating jig of the present utility model to coat a coating object, such as a bipolar plate, installed on the multifunctional coating jig. During use, a bipolar plate is installed on the frame body 1 of the multifunctional coating jig, and the shielding body 2 is installed as needed; then, the multifunctional coating jig equipped with the bipolar plate is installed on the turntable through a fixed shaft 7 disposed on the frame body 1. During the coating process, the multifunctional coating jig will revolve with the turntable and rotate on the turntable to achieve coating the clamped bipolar plate during rotation.

[0069] Embodiment 1

[0070] Step 1: The size of the shielding sheet (shielding body 2) is 460 (height) × 9.5 (width) × 2 (thickness) (unit: mm). It is provided with a double-hole hanging hole 421 composed of a large hole (introduction hole 4211) and a small hole (fixing hole 4213). A plurality of pairs of hooks 411 are disposed on the first frame 11 of the frame body 1. The size of the upper part 4112 of the hook 411 is smaller than the diameter of the large hole and larger than the diameter of the small hole. For example, the diameter of the large hole is 4 - 5 mm, the diameter of the small hole is 2.5 - 3 mm. The hook 411 adopts a big-head nail structure, and the length of its nail part is 2.5 - 4 mm, and the distance between the hooks 411 is 9.5 mm. The above parameters can be adjusted according to actual requirements to adapt to plate-shaped products (such as bipolar plates) of different sizes and shapes.

[0071] Step 2: Assemble the shielding sheet on the multifunctional coating jig, so that the hook 411 enters from the large hole of the shielding sheet, and then is obliquely pushed into the small hole to fix the shielding sheet. The design of the shielding sheet can be customized according to actual requirements. For example, using laser cutting technology, the shielding sheet is cut into the required shape and size. The material of the shielding sheet can be selected as stainless steel, and the thickness is 1.5 - 2.5 mm.

[0072] Step 3: Clamp the bipolar plate on the multifunctional coating jig, and by adjusting the combination mode and position of multiple shielding sheets, the fixation of the bipolar plate and the shielding of the required positions are achieved. The combined use of different shielding sheets can perform continuous interlocking.

[0073] Step 4: Start the coating equipment and perform the coating operation. The coating parameters can be set according to actual requirements, such as a temperature of 200 °C, a time of 2 hours, and a pressure of 1 Pa.

[0074] Step 5: After the coating is completed, remove the masking sheet and take out the coated bipolar plate.

[0075] Example 2

[0076] Step 1: The masking sheet has dimensions of 460 (height) × 20 (width) × 2.5 (thickness) (unit: mm), and is provided with a double-hole hanging hole 421 composed of a large hole (introduction hole 4211) and a small hole (fixing hole 4213). Multiple pairs of hooks 411 are provided on the first side frame 11 of the frame body 1. The size of the upper cap portion 4112 of the hook 411 is smaller than the diameter of the large hole and larger than the diameter of the small hole. For example, the diameter of the large hole is 4 - 5 mm, the diameter of the small hole is 2.5 - 3 mm, the hook 411 adopts a thumb tack structure, the length of its nail part is 2.5 - 4 mm, and the distance between the hooks 411 is 10 mm. The above parameters can be adjusted according to the distance between the hooks 411 on the jig and actual requirements to adapt to plate-shaped products (such as bipolar plates) of different sizes and shapes.

[0077] Step 2: Assemble multiple masking sheets on the jig so that the hooks 411 enter from the large holes of the masking sheet, then push obliquely into the small holes, and the outermost masking sheet can be fixed with screws or clips to lock all the masking sheets. The design of the masking sheet can be customized according to actual requirements. For example, using laser cutting technology, the masking sheet can be cut into the required shape and size. The material of the masking sheet can be selected as stainless steel with a thickness of 1.5 - 2 mm.

[0078] Step 3: Clamp the bipolar plate on the jig and achieve masking of the bipolar plate product by drawing a hollow pattern on a single / multiple masking sheets.

[0079] Step 4: Start the coating equipment and perform the coating operation. The coating parameters can be set according to actual requirements, such as a temperature of 200 °C, a time of 2 hours, and a pressure of 1 Pa.

[0080] Step 5: After the coating is completed, remove the masking sheet and take out the coated bipolar plate. At this time, the required coating pattern has been formed on the bipolar plate.

[0081] Through the free combination and continuous masking of such masking sheets of the multifunctional jig of the present utility model and the design of the interlocking structure, the multifunctional clamping and multi-purpose clamping of the bipolar plate can be realized, meeting the requirements of coating and patterned transfer coating of different-sized materials.

[0082] The first advantage of the present utility model lies in its strong adaptability. The multi-functional jig of the present utility model, through the combination of the introduction hole 4211 (large hole) and the fixing hole 4213 (small hole) and the design of the cap hook 411, is used to install the shielding body 2, and can adapt to coating objects of different sizes. Whether it is a plate-shaped product or a planar product of standard size or non-standard size (such as the bipolar plate of a fuel cell), effective clamping can be achieved by adjusting the combination mode of the shielding body 2, greatly improving the adaptability of the jig.

[0083] The second advantage of the present utility model lies in its wide range of application scenarios. The form of free combination of the shielding body 2 can achieve patterned coating and shielding. The multi-functional jig of the present utility model can not only be used for simple planar coating, but also for complex patterned coating, meeting different coating requirements, expanding the application scenarios, improving the production efficiency, and ensuring that the volatility of the overall coating surface is small, thereby optimizing the stability during coating.

[0084] The third advantage of the present utility model lies in its high coating quality. The multi-functional jig of the present utility model can achieve precise positioning and fixing of the coating object by adjusting the combination mode of the shielding body 2, thereby ensuring the uniformity and quality of the coating, and improving the performance and service life of the coating object. At the same time, through the design of the structure, when the shielding bodies 2 are combined continuously, only one shielding body 2 needs to be fixed to ensure the stability of the remaining shielding bodies 2.

[0085] The fourth advantage of the present utility model lies in reducing the production cost. Since the multi-functional jig of the present utility model can adapt to coating objects of different sizes, there is no need to equip a set of dedicated jigs for each size of coating object, thus greatly reducing the production cost.

[0086] In summary, by designing the shielding body 2, the present utility model can correspondingly install the shielding body 2 on the frame 1 of the coating jig according to the coating requirements of coating objects of different sizes, and can meet the requirements of multi-functional clamping and multi-purpose clamping. And, the specific size of the shielding body 2 can be combined with the coating object according to actual needs to effectively shield the area outside the coating area. Further, when multiple shielding bodies 2 are used in combination, continuous interlocking between multiple shielding bodies 2 can also be achieved through the unique design of the installation structure (the first installation sub-structure 4), ensuring the use stability of the shielding body 2; and by setting the hollow pattern 5 on the shielding body 2, the coating and patterned transfer coating requirements of coating objects of different sizes are fully met.

[0087] Although the embodiments of the present utility model have been described in detail above, it is obvious to those skilled in the art that various modifications and changes can be made to these embodiments. However, it should be understood that such modifications and changes are all within the scope and spirit of the present utility model described in the claims. Moreover, the present utility model described herein may have other embodiments and can be implemented or realized in various ways.

Claims

1. A multifunctional coating fixture, characterized in that: include: A frame, wherein the frame encloses an installation space, and the installation space is used to accommodate a coating object installed on the frame; The shielding body is used to shield the remaining area other than the predetermined coating area on the coating object in the installation space when it is installed on the frame.

2. The multifunctional coating fixture according to claim 1, characterized in that: It also includes a mounting structure for mounting the shielding body on the frame, and mounting the coating object on the frame.

3. The multifunctional coating fixture according to claim 2, characterized in that: The mounting structure includes a first mounting substructure for mounting the shielding body, the first mounting substructure includes a first hanging structure provided on one of the frame and the shielding body, and a second hanging structure provided on the other of the frame and the shielding body and used for hanging and cooperating with the first hanging structure.

4. The multifunctional coating fixture according to claim 3, characterized in that: The frame body is enclosed by two opposite first frames and two second frames correspondingly connected to the two ends of the two first frames, the first hanging structures are arranged in pairs on the two first frames, and are arranged in sequence as multiple pairs along the two end directions of the first frames, and the second hanging structures are arranged in pairs on the two ends of the shielding body, or the second hanging structures are arranged in pairs on the two first frames, and are arranged in sequence as multiple pairs along the two end directions of the first frames, and the first hanging structures are arranged in pairs on the two ends of the shielding body.

5. The multifunctional coating fixture according to claim 4, characterized in that: The first hanging structure includes a hook, and the second hanging structure includes a double-hole hanging hole for hanging and cooperating with the hook. The hook includes a main body and a cap portion arranged at the end of the main body. The double-hole hanging hole includes a connected introduction hole and a fixing hole. The introduction hole is used for hanging the hook, and the fixing hole is used to fix the hook after hanging.

6. The multifunctional coating fixture according to claim 5, characterized in that: Each pair of the double-hole hanging holes is arranged in a mirror image relative to each other, and the two fixing holes in each pair of the double-hole hanging holes are arranged obliquely on one side of the introduction hole relative to the center line connecting the two introduction holes.

7. The multifunctional coating fixture according to any one of claims 4 to 6, characterized in that: When the shielding body needs to be installed, the shielding body is installed on at least one side between the two second frame frames, and the number of installed shielding bodies is one or more; when the number of installed shielding bodies on any one side is one, the shielding body is also fixed to the second frame frame by a fastening structure; or, when the number of installed shielding bodies on any one side is multiple, the shielding bodies on the same side are in close contact and interlocked, and the outermost shielding body is also fixed to the second frame frame by a fastening structure.

8. The multifunctional coating fixture according to claim 1, characterized in that: The shielding body is provided with a hollow pattern for patterned coating.

9. The multifunctional coating fixture according to claim 4, characterized in that: The two first side frames are correspondingly provided with fixed shafts for driving the frame body to rotate.

10. A coating device, characterized in that: It comprises a cavity and a rotating frame arranged in the cavity, wherein the rotating frame uses the multifunctional coating clamp jig as described in any one of claims 1 to 9, and is used for coating a coating object mounted on the multifunctional coating clamp jig.

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