Electromagnetic shielding product production process and electromagnetic shielding product production equipment

CN119636220BActive Publication Date: 2026-08-11SHENZHEN LLMACHINECO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

相关技术中,需要通过模切装置模切膜材以形成电磁屏蔽材料,并收卷电磁屏蔽材料,然后将收卷的电磁屏蔽材料放到放卷机上,放卷机将电磁屏蔽材料输出至包裹设备内,以及将芯棒输出至包裹治具内,让电磁屏蔽材料包裹到芯棒上,然后,通过人工将包裹芯棒的电磁屏蔽材料切成多段,随后,通过人工将多段电磁屏蔽材料逐个摆放至离型膜上,生产过程复杂,需要不断将材料转运,生产效率较低

Benefits of technology

[0051] The waste discharge membrane, the transfer film, and the waste material are wound up.

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Abstract

This application discloses a manufacturing process and equipment for electromagnetic shielding products. The manufacturing process includes the following steps: die-cutting double-sided adhesive; die-cutting hot melt adhesive; die-cutting tape to a predetermined width; die-cutting conductive cloth; combining the conductive cloth, double-sided adhesive, hot melt adhesive, and tape to form a composite strip, wherein the double-sided adhesive is bonded to the lower side of the conductive cloth, and the hot melt adhesive and tape are bonded to the upper side of the conductive cloth, with the hot melt adhesive and tape located at both ends in the width direction of the conductive cloth; die-cutting the composite strip to form several composite segments along its length; bonding a core rod to the upper side of the composite segments; bending the two ends of the composite segments upwards in the width direction to form a wrapping component; and die-cutting the wrapping component to divide it into multiple electromagnetic shielding products. The entire production process is continuous, requiring no intermediate material transfer, resulting in high production efficiency.
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Description

Technical Field

[0001] This application relates to the field of die-cutting technology, and in particular to a manufacturing process and equipment for electromagnetic shielding products. Background Technology

[0002] Electromagnetic shielding products require the electromagnetic shielding material to be wound onto a mandrel, which then supports the material. In related technologies, a die-cutting device is used to cut the film to form the electromagnetic shielding material, which is then wound up. The wound material is then placed on an unwinding machine, which outputs the material to a wrapping device and the mandrel to a wrapping fixture, allowing the shielding material to wrap around it. The shielding material is then manually cut into multiple segments, which are then manually placed one by one onto a release film. This production process is complex, requires constant material transfer, and has low efficiency. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a manufacturing process for electromagnetic shielding products, which can directly produce electromagnetic shielding products without transferring materials.

[0004] This application also proposes an electromagnetic shielding product manufacturing equipment having the above-mentioned electromagnetic shielding product manufacturing process.

[0005] The manufacturing process for an electromagnetic shielding product according to the first aspect of this application includes the following steps:

[0006] Die-cut double-sided tape to form a set width;

[0007] Die-cut the hot melt adhesive to form a set width;

[0008] Die-cut the tape to form a set width;

[0009] Die-cut the conductive fabric to form a predetermined width;

[0010] Composite conductive cloth, double-sided adhesive, hot melt adhesive and tape form a composite strip, wherein the double-sided adhesive is bonded to the lower side of the conductive cloth, the hot melt adhesive and the tape are bonded to the upper side of the conductive cloth, and the hot melt adhesive and the tape are located at both ends in the width direction of the conductive cloth.

[0011] Die-cut the composite strip to cut it, so that the conductive cloth, the double-sided adhesive, the hot melt adhesive and the tape are formed to a set length, forming several composite segments along the length direction;

[0012] The mandrel is bonded to the upper side of the composite segment and is attached to the tape;

[0013] The two ends of the composite segment are bent upward in the width direction to form a wrapping component, wherein one end of the conductive cloth with the hot melt adhesive is wrapped around to the back side of the other end of the conductive cloth, the hot melt adhesive is adhered to the back side of the other end of the conductive cloth, the conductive cloth wraps the tape and the core rod, and the bending of the conductive cloth causes the tape to bend and wrap the core rod.

[0014] The package is die-cut to divide it into multiple electromagnetic shielding products.

[0015] The electromagnetic shielding product manufacturing process according to the first aspect of this application has at least the following advantages: A composite strip is formed by die-cutting and laminating conductive cloth, double-sided adhesive, hot melt adhesive, and tape. Subsequently, the composite strip is directly die-cut to form multiple composite segments. These composite segments are then directly wrapped with a core rod to form multiple wrapping components. The wrapping components are then die-cut to form the electromagnetic shielding product. The entire production process is continuous, requiring no intermediate material transfer, resulting in high production efficiency. Furthermore, by attaching double-sided adhesive to one end of the conductive cloth, the two ends of the conductive cloth in the width direction are bonded together after the conductive cloth is wound around and wrapped around the core rod, allowing the conductive cloth to maintain its wrapped-around posture. By attaching tape to the other end of the conductive cloth, after the conductive cloth is transferred and wound around the core rod, the tape wraps around the core rod. The tape is located between the core rod and the conductive cloth, and it serves to support the conductive cloth.

[0016] According to some embodiments of this application, the following steps are also included:

[0017] The composite segments are asynchronously spaced along their length.

[0018] According to some embodiments of this application, the die-cutting of the package includes the following steps:

[0019] Die-cut between the two packages to sever the mandrel between the two packages.

[0020] According to some embodiments of this application, the following steps are also included:

[0021] A protective film is attached to the lower side of the composite section;

[0022] The protective film is die-cut to divide it into multiple sides along its width.

[0023] After bending both ends of the conductive cloth in the width direction, the plurality of side edges wrap around the outside of the conductive cloth.

[0024] According to some embodiments of this application, the side includes a first side, a second side, a third side, a fourth side, and a fifth side. The first side is attached to the bottom side of the conductive cloth, the second side and the third side are attached to both sides in the width direction of the conductive cloth, and the fourth side and the fifth side are attached to the top side of the conductive cloth.

[0025] According to some embodiments of this application, the following steps are also included:

[0026] Foam is attached to the outside of the package;

[0027] The foam is die-cut to form a corresponding shape.

[0028] According to some embodiments of this application, the following steps are also included:

[0029] The hot melt adhesive and the first silicone film are combined.

[0030] The hot melt adhesive on the first silicone film is die-cut to form a set width;

[0031] The adhesive tape and the hot melt adhesive are combined and applied to a first silicone film, wherein the adhesive tape and the hot melt adhesive are distributed in parallel on the first silicone film;

[0032] The tape on the first silicone film is die-cut to form a set width, thus forming a first semi-finished product;

[0033] The first base film, the first blue release film, and the double-sided adhesive are laminated together so that the first base film, the first blue release film, and the double-sided adhesive are laminated sequentially from top to bottom;

[0034] Die-cut the double-sided adhesive on the first blue release film to form the double-sided adhesive with a set width;

[0035] The conductive cloth is laminated onto the upper side of the double-sided adhesive to form a second semi-finished product;

[0036] The first semi-finished product and the second semi-finished product are combined to bond the hot melt adhesive and the tape to the upper side of the conductive cloth to form the composite tape;

[0037] A second support film is laminated on the underside of the first support film;

[0038] The composite strip is die-cut for the first time to form the conductive cloth to a set width;

[0039] Exclude the first silicone film and waste;

[0040] A transfer film is laminated onto the upper side of the tape and the hot melt adhesive;

[0041] The composite strip is die-cut a second time to cut it, so that the conductive cloth, the double-sided adhesive, the hot melt adhesive and the tape are formed to a set length, forming several composite segments along the length direction, and forming through holes on the conductive cloth.

[0042] According to some embodiments of this application, the following steps are also included:

[0043] Rewind the second backing film;

[0044] Unwind the third support film and rewind the first support film, so that the composite section is asynchronously connected to the third support film.

[0045] According to some embodiments of this application, the following steps are also included:

[0046] Unwind the waste removal film to bond the upper side of the waste removal film and the transfer film together;

[0047] Rewind the third support film and waste material;

[0048] Composite fourth support film and the protective film;

[0049] The protective film on the fourth base film is die-cut to divide the protective film into multiple sides along the width direction, forming a third semi-finished product;

[0050] The third semi-finished product is laminated to the underside of the conductive cloth;

[0051] The waste discharge membrane, the transfer film, and the waste material are wound up.

[0052] According to the electromagnetic shielding product manufacturing equipment of the second aspect embodiment of this application, electromagnetic shielding products are manufactured using the electromagnetic shielding product manufacturing process of the first aspect embodiment.

[0053] The electromagnetic shielding product manufacturing equipment according to the second aspect of this application has at least the following beneficial effects: including all the beneficial effects of the electromagnetic shielding product manufacturing process of the first aspect embodiment, which will not be repeated here.

[0054] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0055] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0056] Figure 1 This is a material handling diagram illustrating the manufacturing process of the electromagnetic shielding product according to an embodiment of this application.

[0057] Figure 2 for Figure 1 Middle section material feeding diagram;

[0058] Figure 3 for Figure 1 Another part of the material handling diagram;

[0059] Figure 4 This is a cross-sectional view of the composite strip used in the manufacturing process of the electromagnetic shielding product according to an embodiment of this application.

[0060] Figure 5 This is a cross-sectional view of the packaging component in the manufacturing process of the electromagnetic shielding product according to an embodiment of this application.

[0061] Figure label:

[0062] Double-sided tape 100;

[0063] Hot melt adhesive 200;

[0064] 300g tape;

[0065] Conductive cloth 400;

[0066] Core rod 500;

[0067] Protective film 600; First side 610; Second side 620; Third side 630; Fourth side 640; Fifth side 650;

[0068] First blue release film 700;

[0069] Composite material strip 810; Package 820;

[0070] Peeling blade 910; receiving tray 920; wrapping fixture 930. Detailed Implementation

[0071] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0072] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0073] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0074] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0075] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Reference Figures 1 to 5 The manufacturing process for an electromagnetic shielding product according to the first aspect of this application includes the following steps:

[0077] Die-cut double-sided tape 100 to form a set width;

[0078] Die-cut the hot melt adhesive 200 to form a set width;

[0079] Die-cut tape 300 to form a set width;

[0080] Die-cut conductive cloth 400 to form a set width;

[0081] Composite conductive cloth 400, double-sided adhesive 100, hot melt adhesive 200 and tape 300 form a composite strip 810, wherein the double-sided adhesive 100 is bonded to the lower side of the conductive cloth 400, the hot melt adhesive 200 and tape 300 are bonded to the upper side of the conductive cloth 400, and the hot melt adhesive 200 and tape 300 are located at both ends in the width direction of the conductive cloth 400.

[0082] Die-cut composite strip 810 to cut composite strip 810 so that conductive cloth 400, double-sided adhesive 100, hot melt adhesive 200 and tape 300 are formed to a set length, forming several composite segments along the length direction;

[0083] The mandrel 500 is bonded to the upper side of the composite section and is attached to the tape 300;

[0084] The two ends of the composite section are bent upwards in the width direction to form a wrapping 820. The conductive cloth 400 with hot melt adhesive 200 attached to one end is wrapped around to the back side of the other end of the conductive cloth 400. The hot melt adhesive 200 is attached to the back side of the other end of the conductive cloth 400. The conductive cloth 400 wraps the tape 300 and the core rod 500. The bending of the conductive cloth 400 causes the tape 300 to bend and wrap the core rod 500.

[0085] Die-cut package 820 to divide package 820 into multiple electromagnetic shielding products.

[0086] Understandably, double-sided adhesive 100, hot melt adhesive 200, tape 300, and conductive cloth 400 are first die-cut separately to form a set width for each of them. The set width can be the required width of double-sided adhesive 100, hot melt adhesive 200, tape 300, and conductive cloth 400 in the electromagnetic shielding product. Subsequently, double-sided adhesive 100, hot melt adhesive 200, tape 300, and conductive cloth 400 are laminated. It should be understood that the conductive cloth 400 is used to provide electromagnetic shielding. The hot melt adhesive 200 is used to adhere the conductive cloth 400 to both sides in the width direction after it is wrapped, so that the conductive cloth 400 remains in a wrapped state. The tape 300 has a certain degree of elasticity and can support the conductive cloth 400. Thus, the hot melt adhesive 200 is attached to one end of the conductive cloth 400 in the width direction so that the hot melt adhesive 200 can adhere to both ends of the conductive cloth 400 in the width direction after it is wrapped. Then, the tape 300 is placed at the other end of the conductive cloth 400. The tape 300 has a relatively long width and can support a large area of ​​the conductive cloth 400 after it is wrapped. After the conductive cloth 400, double-sided adhesive 100, hot melt adhesive 200, and tape 300 are attached to form a composite strip 810, the composite strip 810 continues to be output forward. Then, it is die-cut using a circular cutter to ensure that the conductive cloth 400, double-sided adhesive 100, hot melt adhesive 200, and tape 300 are of a predetermined length. This predetermined length can be the required length of the double-sided adhesive 100, hot melt adhesive 200, tape 300, and conductive cloth 400 in the electromagnetic shielding product, thus forming multiple composite segments along the length direction. It should be understood that, to facilitate the continuous transmission of multiple composite segments, a carrier tape or other tape can be used to support the multiple composite segments. Subsequently, the core rod 500 is combined with the composite section, with the core rod 500 bonded to the upper side of the tape 300, and both are output into the wrapping fixture 930. The wrapping fixture 930 bends both ends of the composite section in the width direction, causing the conductive cloth 400 in the composite section to be rolled inwards, wrapping the tape 300 and core rod 500 originally located above the conductive cloth 400. One end of the conductive cloth 400 with the tape 300 attached first wraps around to the upper side of the core rod 500, and then one end of the double-sided adhesive 100 wraps around to the conductive cloth 400 with the adhesive attached. On the back side of one end of the tape 300, the two ends of the conductive cloth 400 are bonded together with double-sided tape 100 so that the conductive cloth 400 is kept wrapped around the core rod 500. The tape 300 is relatively long, and it can also bend with the conductive cloth 400 during the bending process and wrap around the core rod 500. Thus, the tape 300 is on the outside of the core rod 500, and the conductive cloth 400 is wrapped around the outside of the tape 300. The tape 300, together with the core rod 500, plays the role of supporting the conductive cloth 400 and forms the wrapping part 820.It should be understood that the core rod 500 is a continuous long strip, and one core rod 500 is inserted into multiple packages 820 distributed along the length direction. Therefore, the packages 820 are die-cut to cut the core rod 500, so that the packages 820 are independent of each other, thereby forming an electromagnetic shielding product.

[0087] Understandably, the conductive cloth 400, double-sided adhesive 100, hot melt adhesive 200, and tape 300 are die-cut and laminated to form a composite strip 810. The composite strip 810 is then directly die-cut to form multiple composite segments. These composite segments are then laminated with the core rod 500 and directly wrapped to form multiple wrapping components 820. The wrapping components 820 are then die-cut to form the electromagnetic shielding product. The entire production process is continuous, requiring no intermediate material transfer, resulting in high production efficiency. Furthermore, by attaching double-sided adhesive 100 to one end of the conductive cloth 400, after the conductive cloth 400 is rolled and wrapped around the core rod 500, the two ends of the conductive cloth 400 in the width direction are bonded together by the double-sided adhesive 100, allowing the conductive cloth 400 to maintain its wrapped-around posture. By attaching tape 300 to the other end of the conductive cloth 400, after the conductive cloth 400 is transferred and wound around the core rod 500, the tape 300 is driven to wrap around the core rod 500. The tape 300 is located between the core rod 500 and the conductive cloth 400, and the tape 300 can play the role of supporting the conductive cloth 400.

[0088] Reference Figures 1 to 3 According to some embodiments of this application, the following steps are also included:

[0089] Asynchronous composite segments are used to allow the composite segments to be spaced along the length direction.

[0090] Understandably, in order to avoid mutual interference between composite segments, after the composite strip 810 is cut into multiple composite segments, the spacing between the composite segments is increased through an asynchronous process.

[0091] Reference Figures 1 to 3 According to some embodiments of this application, the die-cutting of the package 820 includes the following steps:

[0092] Die-cut between the two packages 820 to cut the mandrel 500 between the two packages 820.

[0093] It is understandable that the core rod 500 is elongated, and multiple wrapping components 820 are threaded through it. The core rod 500 is cut by die-cutting between two wrapping components 820, thus making the wrapping components 820 independent. It is also understandable that the asynchronous process used to create spacing between the composite segments facilitates the cutting of the core rod 500, avoiding the risk of accidentally cutting the wrapping components 820. Furthermore, the spacing between the composite segments allows part of the core rod 500 to be exposed outside the wrapping components 820. After cutting the core rod 500, a portion of the core rod 500 in the resulting electromagnetic shielding product will be exposed outside the conductive cloth 400, facilitating its removal during use.

[0094] Reference Figure 4 and Figure 5 According to some embodiments of this application, the following steps are also included:

[0095] A protective film 600 is attached to the lower side of the composite section;

[0096] Die-cut the protective film 600 so that the protective film 600 is divided into multiple sides along the width direction;

[0097] After both ends of the curved conductive cloth 400 in the width direction, multiple side edges wrap around the outside of the conductive cloth 400.

[0098] It is understandable that after the composite segment is formed, a protective film 600 is attached to the lower side of the composite segment, and then the protective film 600 is die-cut into multiple sides. During the process of the conductive cloth 400 bending and wrapping the core rod 500, the sides can play a role in protecting the conductive cloth 400. In addition, the sides have a certain degree of rigidity and can support the conductive cloth 400.

[0099] Reference Figure 4 and Figure 5 According to some embodiments of this application, the side includes a first side 610, a second side 620, a third side 630, a fourth side 640, and a fifth side 650. The first side 610 is attached to the bottom side of the conductive cloth 400, the second side 620 and the third side 630 are attached to both sides in the width direction of the conductive cloth 400, and the fourth side 640 and the fifth side 650 are attached to the top side of the conductive cloth 400.

[0100] It is understandable that after the conductive cloth 400 is bent and wrapped around the core rod 500, it will form a bottom side, two sides in the width direction, and a top side. The first side 610 is longer and is attached to the bottom side of the conductive cloth 400. The second side 620 and the third side 630 are attached to the two sides in the width direction of the conductive cloth 400. The fourth side 640 and the fifth side 650 will be attached to the top side of the conductive cloth 400 respectively.

[0101] Specifically, the fourth side 640 and the fifth side 650 are respectively attached to both ends of the conductive cloth 400 in the width direction. The fourth side 640 corresponds to the end of the conductive cloth 400 with double-sided adhesive 100 attached, and the fifth side 650 corresponds to the end of the conductive cloth 400 with adhesive tape 300 attached. Since the end of the conductive cloth 400 with double-sided adhesive 100 is to be attached to the back side of the end of the conductive cloth 400 with adhesive tape 300 attached, in order to avoid the fifth side 650 interfering with the attachment of the double-sided adhesive 100, the fifth side 650 can be rolled up before the conductive cloth 400 is completely wrapped.

[0102] Reference Figures 1 to 3 According to some embodiments of this application, the following steps are also included:

[0103] Foam was attached to the outside of package 820;

[0104] Die-cut the foam to form a corresponding shape.

[0105] Understandably, foam is attached to the outside of the package 820 and die-cut to form a corresponding shape, which can be the shape of the foam in the electromagnetic shielding product. By attaching foam to the outside of the package 820, the foam can provide support and protection after the package 820 is formed into a battery shielding product.

[0106] Reference Figures 1 to 3 According to some embodiments of this application, the following steps are also included:

[0107] Composite hot melt adhesive 200 and first silicone film; specifically, hot melt adhesive 200 is unwound via guide roller U6, first silicone film is unwound via guide roller U7, and waste material from the first silicone film is recovered via guide roller U5.

[0108] The hot melt adhesive 200 on the first silicone film is die-cut to form a set width; specifically, the hot melt adhesive 200 is die-cut by a C-die and the waste is recycled by a U5 guide roller.

[0109] The composite tape 300 and the first silicone film with hot melt adhesive 200 are distributed in parallel on the first silicone film; specifically, the tape 300 is unwound by the U4 guide roller.

[0110] The tape 300 on the first silicone film is die-cut to form a set width and to form a first semi-finished product; specifically, the tape 300 is die-cut using an E-die.

[0111] The first backing film, the first blue release film 700, and the double-sided adhesive 100 are laminated sequentially from top to bottom. Specifically, the double-sided adhesive 100 is unwound via the U1 guide roller, and the waste material of the double-sided adhesive 100 is collected via the Z3 guide roller. The first blue release film 700 is unwound via the Z1 guide roller, and the first backing film is unwound via the L1 guide roller. Subsequently, the double-sided adhesive 100, the first blue release film 700, and the first backing film are laminated via the M1 station.

[0112] The double-sided adhesive 100 on the first blue release film 700 is die-cut to form a set width; specifically, the double-sided adhesive 100 is die-cut using a die A.

[0113] The conductive cloth 400 is laminated onto the upper side of the double-sided adhesive 100 to form a second semi-finished product; specifically, the conductive cloth 400 is unwound by the Q1 guide roller.

[0114] The first and second semi-finished products are combined to bond the hot melt adhesive 200 and the tape 300 to the upper side of the conductive cloth 400 to form a composite tape 810; specifically, the first and second semi-finished products are combined through the M3 station.

[0115] A second support film is laminated on the underside of the first support film; specifically, the second support film is unwound via the L2 guide roller.

[0116] The first die-cutting of the composite strip 810 is performed to allow the conductive cloth 400 to form a set width; specifically, the conductive cloth 400 is die-cut using a D-die.

[0117] The first silicone film and waste are removed; specifically, the first silicone film and edge waste generated during the die-cutting process are wound up by the U8 guide roller and the D-die.

[0118] A transfer film is laminated on the upper side of the tape 300 and the hot melt adhesive 200; specifically, the transfer film is unwound using the U9 guide roller.

[0119] The composite strip 810 is die-cut a second time to cut it, allowing the conductive cloth 400, double-sided adhesive 100, hot melt adhesive 200, and tape 300 to form a set length, creating several composite segments along the length direction, and forming through holes in the conductive cloth 400. Specifically, the composite strip 810 is die-cut using an E-die.

[0120] Reference Figures 1 to 3 According to some embodiments of this application, the following steps are also included:

[0121] The second backing film is wound up; specifically, the second backing film is wound up by the L3 guide roller, and the waste generated during the die-cutting process of the E-drill is removed.

[0122] The third backing film is unwound, and the first backing film is wound up, allowing the composite sections to be asynchronously transferred to the third backing film. Specifically, the first backing film is unwound via guide roller L4, and the third backing film is unwound via guide roller L5. The first and third backing films pass between two doctor blades, allowing the composite sections on the first backing film to be transferred to the third backing film. Then, by controlling the rotational speeds of guide rollers L4 and L5, the composite sections are asynchronously transferred to the third backing film, increasing the spacing between the composite sections.

[0123] Reference Figures 1 to 3 According to some embodiments of this application, the following steps are also included:

[0124] Unwind the waste film to bond the waste film and the top of the transfer film; specifically, unwind the waste film via the Q2 guide roller.

[0125] The third bottom film and waste are wound up; specifically, the third bottom film and waste are wound up using the L6 guide roller.

[0126] The fourth support film and the protective film 600 are laminated; specifically, the fourth support film is unwound via the L9 guide roller, and the protective film 600 is unwound via the L8 guide roller. The fourth support film and the protective film 600 are laminated at the M11 station.

[0127] The protective film 600 on the fourth base film is die-cut to divide the protective film 600 into multiple sides along the width direction, forming a third semi-finished product; specifically, the fourth base film is die-cut by an F-die, and the protective film 600 and waste are recycled by an L7 guide roller.

[0128] The third semi-finished product is laminated to the underside of the conductive cloth 400; specifically, the third semi-finished product and the conductive cloth 400 are laminated at station M10.

[0129] It rewinds waste film, transfer film, and other waste materials. Specifically, it uses U10 guide rollers to recycle waste film, transfer film, and other waste materials.

[0130] Furthermore, the fourth bottom film and the 600 outer frame waste are wound up by the L10 guide roller.

[0131] Furthermore, the mandrel 500 is unwound via guide rollers U10 and U11.

[0132] Furthermore, the mandrel 500 and the composite segment are together incorporated into the wrapping fixture 930 and then bonded together.

[0133] Furthermore, the wrapping fixture 930 bends the composite segment so that the composite segment wraps the mandrel 500.

[0134] Furthermore, the fifth side 650 and the first blue release film 700 are recovered via the U14 guide roller.

[0135] Furthermore, the low-viscosity film is unwound via guide roller U16 and adheres to the upper side of the package 820. The low-viscosity film, along with the second side 620 and the third side 630, is then wound up via U17. The fourth side 640 is wound up via U18.

[0136] Furthermore, the fifth support film is unwound via guide roller L11 and attached to the underside of the package 820. The fifth support film and the first side 610 are then wound up via guide roller L12.

[0137] Furthermore, the green silicone tape is unwound to the underside of the package 820 via guide roller L13, and the sixth process support film is unwound to the underside of the green silicone tape via guide roller L14.

[0138] Furthermore, the foam is unwound to the upper side of the package 820 via the U13 guide roller, and the foam is die-cut by the G-die at the M17 station, and the core rod 500 between the two packages 820 is cut to separate the two packages 820 and form an electromagnetic shielding product. The foam waste is recycled via the U15 guide roller.

[0139] Furthermore, the second blue release film is unwound via guide roller U19, the anti-fouling strip is unwound via guide roller U20, the seventh bottom support film is unwound via guide roller U21, and then the film is laminated via station M19. Finally, the second blue release film is die-cut using H-die, forming the fourth semi-finished product.

[0140] Furthermore, the fourth semi-finished product and the electromagnetic shielding product are laminated at the M19 workstation, wherein the second blue release film is bonded to the upper side of the electromagnetic shielding product.

[0141] Furthermore, the sixth process support film and green silicone tape are wound up by L16 guide rollers to form the finished material tape.

[0142] Furthermore, the finished material strip is wound up and made to pass around the stripping knife 910. The take-up tray 920 is set below the stripping knife 910, and the stripping knife 910 scrapes off the electromagnetic shielding product.

[0143] Reference Figures 1 to 3 According to the electromagnetic shielding product manufacturing equipment of the second aspect embodiment of this application, electromagnetic shielding products are manufactured using the electromagnetic shielding product manufacturing process of the first aspect embodiment.

[0144] The electromagnetic shielding product manufacturing equipment according to the second aspect of this application has at least the following beneficial effects: including all the beneficial effects of the electromagnetic shielding product manufacturing process of the first aspect embodiment, which will not be repeated here.

[0145] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. The manufacturing process for electromagnetic shielding products, characterized in that, Includes the following steps: Die-cut double-sided tape to form a set width; Die-cut the hot melt adhesive to form a set width; Die-cut the tape to form a set width; Die-cut the conductive fabric to form a predetermined width; Composite conductive cloth, double-sided adhesive, hot melt adhesive and tape form a composite strip, wherein the double-sided adhesive is bonded to the lower side of the conductive cloth, the hot melt adhesive and the tape are bonded to the upper side of the conductive cloth, and the hot melt adhesive and the tape are located at both ends in the width direction of the conductive cloth. Die-cut the composite strip to cut it, so that the conductive cloth, the double-sided adhesive, the hot melt adhesive and the tape are formed to a set length, forming several composite segments along the length direction; The mandrel is bonded to the upper side of the composite segment and is attached to the tape; The two ends of the composite segment are bent upward in the width direction to form a wrapping component, wherein one end of the conductive cloth with the hot melt adhesive is wrapped around to the back side of the other end of the conductive cloth, the hot melt adhesive is adhered to the back side of the other end of the conductive cloth, the conductive cloth wraps the tape and the core rod, and the bending of the conductive cloth causes the tape to bend and wrap the core rod. The package is die-cut to divide it into multiple electromagnetic shielding products.

2. The manufacturing process for electromagnetic shielding products according to claim 1, characterized in that, It also includes the following steps: The composite segments are asynchronously spaced along their length.

3. The manufacturing process for electromagnetic shielding products according to claim 2, characterized in that, The die-cutting of the package includes the following steps: Die-cut between the two packages to sever the mandrel between the two packages.

4. The manufacturing process for electromagnetic shielding products according to claim 3, characterized in that, It also includes the following steps: A protective film is attached to the lower side of the composite section; The protective film is die-cut to divide it into multiple sides along its width. After bending both ends of the conductive cloth in the width direction, the plurality of side edges wrap around the outside of the conductive cloth.

5. The manufacturing process for electromagnetic shielding products according to claim 4, characterized in that, The side includes a first side, a second side, a third side, a fourth side, and a fifth side. The first side is attached to the bottom side of the conductive cloth, the second side and the third side are attached to both sides in the width direction of the conductive cloth, and the fourth side and the fifth side are attached to the top side of the conductive cloth.

6. The manufacturing process for electromagnetic shielding products according to claim 5, characterized in that, It also includes the following steps: Foam is attached to the outside of the package; The foam is die-cut to form a corresponding shape.

7. The manufacturing process for electromagnetic shielding products according to claim 6, characterized in that, It also includes the following steps: The hot melt adhesive and the first silicone film are combined. The hot melt adhesive on the first silicone film is die-cut to form a set width; The adhesive tape and the hot melt adhesive are combined and applied to a first silicone film, wherein the adhesive tape and the hot melt adhesive are distributed in parallel on the first silicone film; The tape on the first silicone film is die-cut to form a set width, thus forming a first semi-finished product; The first base film, the first blue release film, and the double-sided adhesive are laminated together so that the first base film, the first blue release film, and the double-sided adhesive are laminated sequentially from top to bottom; Die-cut the double-sided adhesive on the first blue release film to form the double-sided adhesive with a set width; The conductive cloth is laminated onto the upper side of the double-sided adhesive to form a second semi-finished product; The first semi-finished product and the second semi-finished product are combined to bond the hot melt adhesive and the tape to the upper side of the conductive cloth to form the composite tape; A second support film is laminated on the underside of the first support film; The composite strip is die-cut for the first time to form the conductive cloth to a set width; Exclude the first silicone film and waste; A transfer film is laminated onto the upper side of the tape and the hot melt adhesive; The composite strip is die-cut a second time to cut it, so that the conductive cloth, the double-sided adhesive, the hot melt adhesive and the tape are formed to a set length, forming several composite segments along the length direction, and forming through holes on the conductive cloth.

8. The manufacturing process for electromagnetic shielding products according to claim 7, characterized in that, It also includes the following steps: Rewind the second backing film; Unwind the third support film and rewind the first support film, so that the composite section is asynchronously connected to the third support film.

9. The manufacturing process for electromagnetic shielding products according to claim 8, characterized in that, It also includes the following steps: Unwind the waste removal film to bond the upper side of the waste removal film and the transfer film together; Rewind the third support film and waste material; Composite fourth support film and the protective film; The protective film on the fourth base film is die-cut to divide the protective film into multiple sides along the width direction, forming a third semi-finished product; The third semi-finished product is laminated to the underside of the conductive cloth; The waste discharge membrane, the transfer film, and the waste material are wound up.

10. Electromagnetic shielding product manufacturing equipment, characterized in that, Electromagnetic shielding products are manufactured using the electromagnetic shielding product manufacturing process described in any one of claims 1 to 9.

Citation Information

Patent Citations

  • Production process for automatically wrapping core penetrating assembly with conductive cloth and core penetrating wrapping jig thereof

    CN114290689A

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