Cable gluing process and cable gluing equipment

Abstract

The present invention relates to the field of cable processing technology, and specifically discloses a cable gluing process and a cable gluing device. The process includes the following steps: selecting a glue-coated section on the assembled cable product, and the remaining cable products are non-glue-coated sections; using a hot pressing device to hot press the glue-coated section and keep it for a working time: clamping a flow suppression ring on the flow suppression end of the glue-coated section, wherein the end where the glue-coated section is connected to the non-glue-coated section is the flow suppression end; applying glue on the surface of the glue-coated section, and then waiting for the glue to solidify; after the braided layer of the glue-coated section and the solidified glue form a glue layer, the flow suppression ring is removed. This process suppresses the diffusion of glue on the braided layer by clamping the flow suppression ring in the hot pressing area of ​​the cable product, reduces the probability of glue penetrating into the non-glue-coated section, and improves the appearance of the cable product. The above process improvements optimize the manufacturing process of cable products, ensure the operability of the process, and help to improve the degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of cable processing, in particular to a cable gluing process and a cable gluing device. Background Art

[0002] Wires and cables are common electronic components that connect electrical circuits, and their quality is crucial to the overall reliability of system equipment. When manufacturing a power cable harness, the cables are first arranged and glued in a gluing device. Then, they are placed in an oven to remove the solvent and bond the connecting wires together, resulting in a preliminary harness. Finally, post-processing steps such as bending, punching, and terminal connection are performed according to process requirements to produce the finished power cable.

[0003] Take the high flame retardant fast charging cable as an example. Figure 1 As shown, the cable body 110' of the conventional cable product 100' is molded with a TPU (Thermoplastic polyurethanes, thermoplastic polyurethane rubber) outer sheath 120', which has low safety and short service life, and is difficult to meet the increasing demand for fast charging cables. Therefore, the following is proposed now. Figure 2 The cable product 100 shown uses a silicone outer sheath 120 to replace the previous TPU outer sheath 120', and a PET (Polyethylene terephthalate) braided layer 130 is provided on the silicone outer sheath 120. The above improvements enable the cable product 100 to have a better visual and tactile experience, enhance the safety of the cable product 100, and extend the service life of the cable product 100.

[0004] However, the structure of the PET braided layer 130 is soft and highly elastic, and there is no adhesion between it and the silicone outer jacket 120. It can slide freely relative to the silicone outer jacket 120, causing the braided layer 130 to shrink during the front-end processing stage of the wire, seriously affecting the appearance and related functions of the cable product 100.

[0005] At present, the conventional manufacturing process of the cable product 100 is to apply quick-drying glue on the braided layer 130 to bond the braided layer 130 to the silicone outer jacket 120 to prevent the braided layer 130 from shrinking and avoid the poor appearance of the cable product 100 due to exposure of the silicone outer jacket 120.

[0006] However, the quick-drying adhesive has strong fluidity and its flow on the braided layer 130 is irregular and has a capillary phenomenon, which causes the quick-drying adhesive to flow from the edge of the glue-coated area to the non-glue-coated area, thereby resulting in a poor appearance of the cable product 100. Summary of the Invention

[0007] The object of the present invention is to provide a cable gluing process and a cable gluing device for inhibiting the diffusion of glue on the braided layer and improving the appearance of the cable product.

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] The cable gluing process includes the following steps:

[0010] S10: Selecting the glue-coated sections on the assembled cable product, and the remaining sections of the cable product are non-glue-coated sections;

[0011] S20: Using a hot pressing device to hot press the glue coating section and keep working for:

[0012] S30: Connecting a flow suppression ring to the flow suppression end of the glue-coated section, wherein the end where the glue-coated section is connected to the non-glue-coated section is the flow suppression end;

[0013] S40: applying glue on the surface of the glue coating section, and then waiting for the glue to solidify;

[0014] S50: After the braided layer of the glue coating section and the solidified glue form a glue coating layer, the flow suppression ring is removed.

[0015] As a preferred technical solution for the cable gluing process, the hot pressing temperature of the gluing section applied by the hot pressing device is the working temperature, and the hot pressing pressure of the gluing section applied by the hot pressing device is the working pressure.

[0016] As a preferred technical solution for the cable gluing process, the working temperature is 200° C.-220° C., and / or the working pressure is 0.3 MPa-0.7 MPa.

[0017] As a preferred technical solution for the cable gluing process, the thickness of the current suppression ring is greater than or equal to 0.08 mm.

[0018] As a preferred technical solution for the cable gluing process, the length of the current suppression ring in the longitudinal direction of the cable product is 1.00 mm to 2.00 mm.

[0019] As a preferred technical solution for the cable gluing process, the current suppression ring includes a copper foil strip wound on the surface of the cable product; S30 includes the following detailed steps:

[0020] S31: Winding the copper foil strip around the axis of the cable product and onto the outer surface of the flow suppression end;

[0021] S50 includes the following detailed steps:

[0022] S51: After the braided layer of the glue coating section and the solidified glue form a glue coating layer, tear off all the copper foil strips.

[0023] As a preferred technical solution for the cable gluing process, the material of the braided layer is PET.

[0024] As a preferred technical solution for the cable gluing process, the gluing section is provided at the end of the cable product.

[0025] The cable gluing device is applied to the above-mentioned cable gluing process, comprising a hot pressing device and a gluing device, wherein the hot pressing device is used to hot-press the gluing section, and the gluing device is used to apply the glue.

[0026] As an optimal technical solution for cable gluing equipment, the hot pressing device includes a hot pressing assembly and a guide block. The hot pressing assembly selectively hot presses the cable product located in the hot pressing shaft groove, and the guide block is provided with a guide shaft groove coaxial with the hot pressing shaft groove.

[0027] Beneficial effects of the present invention:

[0028] This cable gluing process shrinks the braid by applying localized heat pressure to the glued section, reducing the gap between the braid and the silicone sheath and weakening the capillary effect of the braid. Simultaneously, the shrinkage of the braid shrinks the mesh gaps formed by the mesh structure of the braid, slowing the diffusion of the glue. This slowed diffusion prolongs the glue's retention time. The longer the glue remains in the air, the less fluid the glue becomes as it solidifies. The subsequent design of a flow suppression ring attached to the flow suppression end can reduce or even negligibly reduce the mesh gaps formed by the mesh structure of the braid at this point. The flow suppression ring forms a tightly closed structure, blocking the glue's diffusion path. The combination of localized heat pressure and the flow suppression ring inhibits the flow of glue, reducing the probability of glue penetrating into the non-coated section and enhancing the aesthetic appearance of the cable product. These improvements simplify the cable product manufacturing process, ensure the operability of the process flow, and help increase the automation level of the cable gluing process.

[0029] The cable gluing equipment, with the help of the setting of the hot pressing device and the gluing device, ensures that the local hot pressing and local gluing operations on the cable products in the cable gluing process can be automatically completed with the help of the equipment, thereby improving the degree of automation of the cable gluing process, reducing the workload of the operator, and reducing the risk of misoperation. The above settings help to reduce the probability of glue penetrating into the non-glued section, thereby achieving the improvement of the efficiency of the cable gluing process and the improvement of the yield rate of cable products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of an existing cable product with a TPU outer sheath;

[0031] Figure 2 It is a schematic diagram of the structure of an existing cable product with a silicone outer sheath and a braided layer;

[0032] Figure 3 This is a workflow diagram of a cable gluing process provided by an embodiment of the present invention;

[0033] Figure 4 is a side view of a cable product after step 1 of the cable gluing process provided by an embodiment of the present invention;

[0034] Figure 5 is a side view of a cable product after step 4 of the cable gluing process provided in an embodiment of the present invention;

[0035] Figure 6 is a side view of a cable product after step five of the cable gluing process provided in an embodiment of the present invention;

[0036] Figure 7 1 is a schematic structural diagram of a hot pressing device provided in an embodiment of the present invention;

[0037] Figure 8 yes Figure 7 A partial enlarged view of middle A;

[0038] Figure 9 yes Figure 7 A partial enlarged view of B.

[0039] Figure 1 middle:

[0040] 100', cable product; 110', cable body; 120', TPU outer sheath.

[0041] Figure 2-Figure 9 middle:

[0042] 100. Cable product; 110. Cable body; 120. Silicone jacket; 130. Braided layer; 140. Rubber coating layer;

[0043] 200, flow suppression ring;

[0044] 300, hot pressing device; 310, control panel; 320, hot pressing assembly; 321, hot pressing cover; 322, hot pressing base; 323, hot pressing lock; 330, guide block; 331, guide shaft groove. DETAILED DESCRIPTION

[0045] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0048] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0049] like Figures 2 to 7 As shown, the glue-coated section on the cable product 100 is M, and the non-glue-coated section is N. This embodiment provides a cable glue coating process, including the following steps:

[0050] Step 1: Select the glue-coated section M on the assembled cable product 100, and the remaining cable product 100 is the non-glue-coated section N.

[0051] Step 2: Use the hot pressing device 300 to hot press the glue-coated section M and maintain the working time.

[0052] Step 3: Hoop the flow suppression ring 200 on the flow suppression end of the glue-coated section M, wherein the end where the glue-coated section M is connected to the non-glue-coated section N is the flow suppression end.

[0053] Step 4: Apply glue on the surface of the glue coating section M and wait for the glue to solidify.

[0054] Step 5: After the braided layer 130 of the glue coating section M and the solidified glue form the glue coating layer 140 , the flow suppression ring 200 is removed.

[0055] The assembly process of the cable product 100 includes the following steps: first, all cable bodies 110 are arranged in parallel, then the silicone jacket 120 is molded onto the exterior of all cable bodies 110, and finally, the braided layer 130 is applied over all silicone jackets 120. The braided layer 130 has a mesh structure. After the cable product 100 is assembled, the spacing between the braided layer 130 and the silicone jacket 120 is too large, and the mesh gaps formed by the mesh structure of the braided layer 130 are large, resulting in capillary phenomena.

[0056] This cable gluing process shrinks the braided layer 130 by subjecting the glue-coated section M to local hot pressing, thereby reducing the distance between the braided layer 130 and the silicone outer jacket 120 and weakening the capillary effect of the braided layer 130. At the same time, the shrinkage of the braided layer 130 will also reduce the mesh gaps formed by the mesh structure of the braided layer 130, slowing down the diffusion rate of the glue. The slowdown in the diffusion rate will prolong the retention time of the glue. The longer the glue remains in the air, the less fluid the glue itself will be due to the solidification of the glue. The design of subsequently connecting the flow suppression ring 200 to the flow suppression end can make the mesh gaps formed by the mesh structure of the braided layer 130 at the flow suppression end smaller or even negligible. The setting of the flow suppression ring 200 forms a tightly closed structure, thereby blocking the diffusion path of the glue. The combination of local hot pressing and the setting of the flow suppression ring 200 inhibits the flow of glue, reduces the probability of glue penetrating into the non-glue-coated section N, and improves the appearance of the cable product. The above improvements simplify the manufacturing process of the cable product 100, ensure the operability of the process flow, and help to improve the degree of automation of the cable gluing process.

[0057] In this embodiment, the original diameter of the cable product 100 is 3.05 mm, which is compressed to between 2.80 mm and 2.95 mm after high-temperature hot pressing.

[0058] In this embodiment, the hot pressing temperature of the hot pressing device 300 on the glue coating section M is the working temperature, and the hot pressing pressure of the hot pressing device 300 on the glue coating section M is the working pressure.

[0059] By limiting the hot pressing temperature and hot pressing pressure, the parameters of the hot pressing device 300 for high-temperature hot pressing are limited. The above limitations ensure the effect of high-temperature hot pressing, improve the efficiency of the hot pressing operation, ensure the smooth progress of the cable gluing process, and improve the yield rate of the gluing processing of the cable product 100.

[0060] In one embodiment of this embodiment, the operating temperature is 200° C.-220° C. In another embodiment of this embodiment, the operating pressure is 0.3 MPa-0.7 MPa. In yet another embodiment of this embodiment, the operating temperature is 200° C.-220° C. and the operating pressure is 0.3 MPa-0.7 MPa.

[0061] By limiting the hot pressing temperature and hot pressing pressure within corresponding ranges, the working conditions of the hot pressing device 300 for high-temperature hot pressing are standardized, the effect of high-temperature hot pressing is effectively guaranteed, and the yield rate of the glue coating process is further improved.

[0062] For example, the material of the braided layer 130 is PET. Specifically, the density of the PET braided layer 130 before hot pressing is 100 kg / m 3 -200kg / m 3 The density of the PET braided layer 130 after hot pressing is 500kg / m 3 -650kg / m 3 , after wrapping with copper foil, the density of PET braided layer 130 is 800kg / m 3 -900kg / m 3 .

[0063] The PET braided layer 130 has excellent mechanical properties and fold resistance. It is also resistant to oils, fats, dilute acids, dilute alkalis, and most solvents. PET allows for smooth mesh formation on the braided layer 130, and the mesh gaps can be reduced as needed after hot pressing. These material requirements meet design requirements, ensuring high operational stability and low production costs.

[0064] For example, the thickness of the current suppression ring 200 is greater than or equal to 0.08 mm. The limitation of the thickness greater than or equal to 0.08 mm reduces the risk of damage to the current suppression ring 200 due to being too thin, ensures the stable operation of the current suppression ring 200, and further improves the yield rate of the glue coating process.

[0065] In this embodiment, the length of the suppression ring 200 along the length of the cable product 100 is 1.00 mm to 2.00 mm. By limiting the length of the suppression ring 200 along the length of the cable product 100, the suppression ring 200 can smoothly function as a closed structure, thereby effectively suppressing the spread of glue. The range of 1.00 mm to 2.00 mm specifies appropriate requirements for the length of the suppression ring 200 along the length of the cable product 100. If it is too short, the suppression ring 200 will not effectively prevent glue from overflowing. If it is too long, the cost of the suppression ring 200 will increase.

[0066] In this embodiment, the current suppression ring 200 includes a copper foil strip wound on the surface of the cable product 100; step three includes the following detailed steps: winding the copper foil strip around the axis of the cable product 100 on the outer surface of the current suppression end; step five includes the following detailed steps: after the braided layer 130 of the glue coating section M forms a glue coating layer 140 with the solidified glue, tear off all the copper foil strips.

[0067] The design of using copper foil strips as the current suppression ring 200 features low production costs and excellent current suppression effectiveness. The copper foil strips wound into a ring can smoothly meet the layout requirements of the current suppression ring 200. These improvements effectively reduce the difficulty of disassembly and assembly of the current suppression ring 200 and production costs, facilitate the smooth implementation of the cable gluing process, and improve the production efficiency of the cable product 100.

[0068] Copper foil strips themselves do not have fluid conductivity, and compared to other materials, copper foil itself is almost inelastic, which makes the copper foil strips have a strong enough inhibitory effect and a certain toughness and softness (i.e. plasticity) that ordinary plastic tapes and clamps cannot match.

[0069] In this embodiment, the glue coating section M is provided at the end of the cable product 100. This limitation of providing the glue coating section M at the end of the cable product 100 allows only one current suppression ring 200 to be provided on the cable product 100, which not only reduces the workload but also effectively reduces the risk of glue penetration.

[0070] like Figures 2 to 9 As shown, this embodiment also provides a cable gluing device, which is applied to the above-mentioned cable gluing process, including a hot pressing device 300 and a gluing device, the hot pressing device 300 is used to hot press the gluing section M, and the gluing device is used to apply glue.

[0071] The cable gluing equipment, with the help of the hot pressing device 300 and the gluing device, ensures that the local hot pressing and local gluing operations on the cable product 100 in the cable gluing process can be automatically completed with the help of the equipment, thereby improving the degree of automation of the cable gluing process, reducing the workload of the operator, and reducing the risk of misoperation. The above settings help to reduce the probability of glue penetrating into the non-glued section N, thereby achieving improved efficiency of the cable gluing process and improved yield of the cable product 100.

[0072] In this embodiment, the gluing method of the gluing device is not limited. The specific gluing method is selected by technicians in this field according to the actual project. The specific selection method is common knowledge in this field and will not be elaborated here.

[0073] In this embodiment, the glue is a quick-drying glue. In other embodiments of this embodiment, the glue is of other types. The specific type of glue is selected by those skilled in the art based on the actual project. The specific selection method is common knowledge in the art and will not be elaborated here.

[0074] In this embodiment, the hot pressing device 300 includes a hot pressing assembly 320 and a guide block 330. The hot pressing assembly 320 selectively hot presses the cable product 100 located in the hot pressing axis groove. The guide block 330 is provided with a guide axis groove 331 coaxial with the hot pressing axis groove.

[0075] With the help of the setting of the guide shaft groove 331 on the guide block 330, the positioning effect of the hot pressing device 300 on the cable product 100 is guaranteed, the risk of position displacement of the cable product 100 is reduced, and the accuracy of the hot pressing position is guaranteed. The hot pressing component 320 is designed to selectively hot press the cable product 100 located in the hot pressing shaft groove, so that the cable product 100 can be hot pressed by direct contact, and at the same time, the positioning ability of the hot pressing device 300 on the cable product 100 is further improved.

[0076] Furthermore, the hot pressing device 300 also includes a control panel 310, which is communicatively connected to the hot pressing assembly 320 and has the ability to control the hot pressing assembly 320 to start or stop hot pressing, as well as adjust the hot pressing temperature and hot pressing pressure of the hot pressing assembly 320. The hot pressing assembly 320 includes a hot pressing cover plate 321, a hot pressing base 322, and a hot pressing lock 323. The hot pressing cover plate 321 is hinged to the hot pressing base 322, and the hot pressing lock 323 is hinged to the hot pressing base 322. The hot pressing cover plate 321 can swing between an open position and a closed position relative to the hot pressing base 322. The hot pressing base 322 and the hot pressing cover plate 321 in the closed position are spliced ​​to form a hot pressing shaft groove. The hot pressing lock 323 selectively locks to the hot pressing cover plate 321 in the closed position.

[0077] Through the above design, the opening position of the hot pressing shaft groove can be limited, thereby reducing the difficulty of arranging the cable product 100 in the hot pressing shaft groove, ensuring the positioning effect of the hot pressing component 320 on the cable product 100, and ensuring that the hot pressing operation of the hot pressing component 320 on the glue coating section M can be completed smoothly.

[0078] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Cable gluing process, characterized in that: The following steps are involved: S10: selecting a glue-coated section on the assembled cable product (100), and the remaining sections of the cable product (100) are non-glue-coated sections; S20: Using a hot pressing device (300) to hot press the glue coating section and maintain the working time: S30: hooping a flow suppression ring (200) on the flow suppression end of the glue-coated section, wherein the end portion of the glue-coated section connected to the non-glue-coated section is the flow suppression end; S40: applying glue on the surface of the glue coating section, and then waiting for the glue to solidify; S50: After the braided layer (130) of the glue coating section and the solidified glue form a glue coating layer (140), the flow suppression ring (200) is removed; The current suppression ring (200) comprises a copper foil strip wound on the surface of the cable product (100); S30 comprises the following detailed steps: S31: Winding the copper foil strip around the axis of the cable product (100) and onto the outer surface of the flow suppression end; S50 includes the following detailed steps: S51: After the braided layer (130) of the glue coating section and the solidified glue form a glue coating layer (140), all the copper foil strips are torn off.

2. The cable gluing process according to claim 1, characterized in that: The hot pressing temperature of the hot pressing device (300) on the glue coating section is the working temperature, and the hot pressing pressure of the hot pressing device (300) on the glue coating section is the working pressure.

3. The cable gluing process according to claim 2, characterized in that: The working temperature is 200°C-220°C, and / or The working pressure is 0.3Mpa-0.7Mpa.

4. The cable gluing process according to claim 1, characterized in that: The thickness of the flow suppression ring (200) is greater than or equal to 0.08 mm.

5. The cable gluing process according to claim 1, characterized in that: The length of the current suppression ring (200) in the length direction of the cable product (100) is 1.00 mm to 2.00 mm.

6. The cable gluing process according to claim 1, characterized in that: The material of the braided layer (130) is PET.

7. The cable gluing process according to any one of claims 1 to 6, characterized in that: The glue coating section is provided at the end of the cable product (100).

8. Cable gluing equipment, characterized in that, The cable gluing process according to any one of claims 1 to 7 comprises a hot pressing device (300) and a gluing device, wherein the hot pressing device (300) is used for hot pressing the gluing section, and the gluing device is used for applying the glue.

9. The cable gluing equipment according to claim 8, characterized in that: The hot pressing device (300) comprises a hot pressing assembly (320) and a guide block (330), wherein the hot pressing assembly (320) selectively hot presses the cable product (100) located in a hot pressing shaft groove, and the guide block (330) is provided with a guide shaft groove (331) coaxial with the hot pressing shaft groove.

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