Cable longitudinal shield layer mold

Abstract

The utility model relates to a kind of cable longitudinal package shielding layer mould, it includes fixed base, shielding layer guiding device, cable positioning device and forming device, shielding layer guiding device is set on fixed base, and it is set along fixed base length direction extension, for shielding layer that is sent into shielding layer guiding device is guided and is attached on the cable to be processed, cable positioning device is set on fixed base and is located shielding layer guiding device one end, for the cable to be processed is introduced into shielding layer guiding device along the length direction of shielding layer guiding device, and limit the cable to be processed deviation, forming device is set on fixed base and is located shielding layer guiding device back to cable positioning device one end, for shielding layer is covered on the surface of the cable to be processed, the utility model has accurate positioning, the cable to be processed cannot deviate, without manual adjustment to cable, improve production efficiency, to be able to adapt to the effect of mass production demand.

Description

Technical Field

[0001] This utility model relates to the technical field of cable processing equipment, and in particular to a mold for a longitudinal shielding layer of a cable. Background Technology

[0002] As a core component for high-frequency signal transmission in vehicles (such as GPS, radar, and camera signal transmission), automotive coaxial cables typically have a metal shielding layer inside the cable. This shielding layer is a key structure for resisting electromagnetic interference, ensuring signal integrity by reflecting / absorbing electromagnetic waves. Its shielding effectiveness directly determines the reliability of the vehicle communication system.

[0003] The shielding layer is typically composed of micron-sized copper foil or aluminum-plastic composite tape, wrapped around the outside of the insulated core wire. In actual production, the shielding layer is usually formed on the outside of the insulated core wire through processes such as longitudinal wrapping, spiral wrapping, braiding, or extrusion molding. In the longitudinal wrapping process, a guiding device is usually used. The unwound metal foil tape (such as copper foil) is precisely folded and wrapped around the cable core wire through the cavity of the U-shaped forming groove of the guiding device.

[0004] However, this longitudinal wrapping process only has a forming guide device. The cable to be wrapped with the shielding layer is directly passed from the previous processing equipment into the U-shaped forming groove of the guide device for wrapping the shielding layer. Its placement accuracy is low, and the cable to be processed is prone to displacement, affecting the forming of the shielding layer. The position of the cable needs to be adjusted manually, resulting in low production efficiency and difficulty in meeting the needs of mass production. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a cable longitudinal shielding layer mold to solve the technical problems of low placement accuracy, easy deviation leading to low production efficiency and difficulty in adapting to the needs of mass production in the prior art.

[0006] This utility model provides a mold for a longitudinally wrapped shielding layer of a cable, characterized in that it includes:

[0007] Fixed base;

[0008] A shielding layer guide device is disposed on the fixed base and extends along the length of the fixed base, for guiding the shielding layer fed into the shielding layer guide device to adhere to the cable to be processed;

[0009] A cable positioning device is provided on the fixed base and located at one end of the shielding layer guide device. It is used to guide the cable to be processed into the shielding layer guide device along the length direction of the shielding layer guide device and to limit the deviation of the cable to be processed.

[0010] A forming device is disposed on the fixed base and located at the end of the shielding layer guide device facing away from the cable positioning device, and is used to cover the shielding layer onto the surface of the cable to be processed.

[0011] The cable to be processed passes sequentially through the cable positioning device, the shielding layer guiding device, and the forming device.

[0012] Optionally, it also includes:

[0013] A sizing device is mounted on the fixed base and located on the forming device away from the shielding layer guide device. It is used to tightly adhere the shielding layer covering the surface of the cable to be processed to the surface of the cable to be processed, thereby controlling the outer diameter of the formed cable.

[0014] Optionally, the cable positioning device includes a positioning cylinder with a positioning hole. The positioning hole is arranged along the conveying direction of the cable to be processed, and the cable to be processed passes through the positioning hole and can slide within the positioning hole.

[0015] Optionally, the shielding layer guiding device includes a cable channel with a guide groove. The guide groove extends along the length of the cable channel and its two ends are respectively connected to the cable positioning device and the forming device. The cross-section of the guide groove is open.

[0016] Optionally, the cable channel is provided with at least three sections, and starting from the side closest to the cable positioning device, the opening angle of the cross-section of the guide groove on the three sections of the cable channel decreases sequentially.

[0017] Optionally, a stabilizing cylinder is provided between two adjacent cable channels. The stabilizing cylinder has a stabilizing hole, which is set along the conveying direction of the cable to be processed. The cable to be processed at the stabilizing cylinder passes through the stabilizing hole to limit the deviation of the cable to be processed.

[0018] Optionally, the forming device includes a forming cylinder with a forming hole. The forming hole is arranged along the conveying direction of the cable to be processed. When the cable to be processed with a shielding layer enters the forming hole, the shielding layer wraps around the surface of the cable to be processed.

[0019] Optionally, the inner wall of the guide groove of the cable channel near the side of the forming cylinder gradually moves towards its axis from the end away from the forming cylinder until the inner diameter of the guide groove facing the end of the forming cylinder matches the inner diameter of the forming hole.

[0020] Optionally, the shielding layer guiding device, the cable positioning device, the forming device, and the sizing device can all be detachably connected to the fixed base.

[0021] Optionally, the mounting base is provided with a connector for connecting the mounting base to the cable processing equipment.

[0022] The technical solution of this utility model has the following advantages:

[0023] The cable longitudinal shielding layer mold provided by this utility model integrates a cable positioning device, a shielding layer guiding device, and a forming device in its fixing base. The cable to be processed is precisely positioned and transported into the shielding layer guiding device through the cable positioning device. Copper foil is introduced into the shielding layer guiding device and pre-formed and adhered to the surface of the cable to be processed through the shielding layer guiding device. Then, it is sent into the forming device, where the copper foil is wrapped around the surface of the cable to be processed to form a shielding layer. The positioning is precise throughout the process, and the cable to be processed will not shift under the action of the cable positioning device. No manual adjustment of the cable is required, which improves production efficiency. The shielding layer can be continuously formed on the cable to be processed simply by feeding the cable to be processed into the cable longitudinal shielding layer mold, thereby meeting the needs of large-scale production. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the cable longitudinal shielding layer mold of this utility model;

[0026] Figure 2 This is a schematic diagram of the back of the mold for the longitudinal shielding layer of the cable in this utility model;

[0027] Figure 3 This is a partial schematic diagram of the forming device and the sizing device in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Fixing base; 2. Shielding layer guiding device; 21. Cable channel; 22. Guide groove; 3. Cable positioning device; 31. Positioning cylinder; 32. Positioning hole; 4. Forming device; 41. Forming cylinder; 42. Forming hole; 5. Sizing device; 51. Sizing cylinder; 52. Sizing hole; 6. Stabilizing cylinder; 7. Stabilizing hole; 8. Connecting hole. Detailed Implementation

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0031] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0032] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, 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 utility model.

[0033] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0034] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0035] Example

[0036] Reference Figures 1-3 As shown, this utility model provides a cable longitudinal shielding layer mold, including a fixed base 1, a shielding layer guiding device 2, a cable positioning device 3, and a forming device 4. The cable to be processed passes through the cable positioning device 3, the shielding layer guiding device 2, and the forming device 4 in sequence. The shielding layer guiding device 2 is disposed on the fixed base 1 and extends along the length direction of the fixed base 1. It is used to guide the shielding layer fed into the shielding layer guiding device 2 to adhere to the cable to be processed. The cable positioning device 3 is disposed on the fixed base 1 and located at one end of the shielding layer guiding device 2. It is used to introduce the cable to be processed into the shielding layer guiding device 2 along the length direction of the shielding layer guiding device 2 and to limit the deviation of the cable to be processed. The forming device 4 is disposed on the fixed base 1 and located at the end of the shielding layer guiding device 2 opposite to the cable positioning device 3. It is used to cover the surface of the cable to be processed with the shielding layer.

[0037] The fixed base 1 integrates a cable positioning device 3, a shielding layer guiding device 2, and a forming device 4. The cable to be processed is precisely positioned and conveyed into the shielding layer guiding device 2 through the cable positioning device 3. The copper foil is introduced into the shielding layer guiding device 2, and through the shielding layer guiding device 2, the copper foil is pre-formed and attached to the surface of the cable to be processed. Then it is sent into the forming device 4. Under the action of the forming device 4, the copper foil is wrapped around the surface of the cable to be processed to form a shielding layer. The positioning is accurate throughout the process. The cable to be processed will not shift under the action of the cable positioning device 3. There is no need for manual adjustment of the cable, which improves production efficiency. The cable to be processed only needs to be sent into the cable longitudinal shielding layer mold to continuously form a shielding layer on the cable to be processed, so as to meet the needs of large-scale production.

[0038] The shielding layer guide device 2, the cable positioning device 3, and the forming device 4 can all be detachably connected to the fixed base 1, so that the shielding layer guide device 2, the cable positioning device 3, and the forming device 4 can be adjusted when processing cables of different specifications, thereby adapting to cables of different specifications.

[0039] Furthermore, refer to Figure 2 As shown, a connector is provided on the fixed base 1. The connector is located on the side of the fixed base 1 facing away from the shielding layer guide device 2 and is used to connect the fixed base 1 to other cable processing equipment. Specifically, the connector is a plug-in component, and the plug-in component is a connecting hole 8 or a connecting shaft. In this embodiment, the plug-in component is a connecting hole 8. Multiple connecting holes 8 are provided and are evenly arranged on the bottom of the fixed base 1. By providing the connecting holes 8, the fixed base 1 can be fixed to other cable processing equipment by cooperating with the fixed shaft on other cable processing equipment.

[0040] As one specific implementation method, refer to Figure 1 As shown, the cable positioning device 3 includes a positioning cylinder 31, which extends along the cable conveying direction. A positioning hole 32 is provided on the positioning cylinder 31, which is also arranged along the cable conveying direction. The cable to be processed passes through the positioning hole 32 and slides within the positioning hole 32. The cable to be processed is in contact with the inner wall of the positioning hole 32. Thus, under the action of the positioning hole 32, the cable to be processed can only be introduced into the shielding layer guide device 2 along the direction of the positioning hole 32, and will not shift to the surrounding areas. This avoids the position of the cable to be processed shifting within the shielding layer guide device 2, which could lead to shielding layer shifting or poor shielding layer coverage.

[0041] The shielding layer guiding device 2 includes a cable channel 21, which extends along the conveying direction of the cable to be processed. A guide groove 22 is provided on the cable channel 21. The guide groove 22 extends along the length of the cable channel 21 and its two ends are respectively connected to the cable positioning device 3 and the forming device 4. The cross-section of the guide groove 22 is open. During use, the copper foil enters the guide groove 22 through the side wall of the guide groove 22 and is attached to the cable to be processed, which enters the guide groove 22 and slides along the length of the guide groove 22. Under the action of the inner wall of the guide groove 22, the two sides of the copper foil gradually bend upward until they are attached to the surface of the cable to be processed.

[0042] Furthermore, in this embodiment, the cable channel 21 is provided in three sections. The three sections of cable channel 21 are arranged sequentially along the conveying direction of the cable to be processed. Each section of cable channel 21 has a guide groove 22 along its length direction, and both ends of the guide groove 22 penetrate through the two end walls of the cable channel 21, so that the multiple sections of cable channel 21 are connected. The guide groove 22 of the cable channel 21 near the cable positioning device 3 is connected to the positioning hole 32, and the guide groove 22 of the cable channel 21 near the forming device 4 is connected to the forming device 4, so that the cable to be processed can pass through the cable positioning device 3, the three sections of cable channel 21 and the forming device 4 in sequence.

[0043] Furthermore, starting from the cable channel 21 near the cable positioning device 3, that is, along the conveying direction of the cable to be processed, the opening angle of the cross-section of the guide groove 22 on the three cable channels 21 decreases sequentially. This allows the copper foil fed into the guide groove 22 to be slightly lifted on both sides in the first cable channel 21, further bent into a shallow U-shape in the second cable channel 21, and fully formed and adhered to the surface of the cable to be processed in the third cable channel 21. Through this gradient reduction of the opening angle, the bending of the copper foil changes from abrupt to continuous and gradual, reducing the wrinkles of the copper foil and making the copper foil adhere to the surface of the cable more stably.

[0044] A stabilizing cylinder 6 is provided between two adjacent cable channels 21. Specifically, the stabilizing cylinder 6 is detachably connected to the side wall of the fixing seat 1 between the second and third cable channels 21 of the cable positioning device 3. The stabilizing cylinder 6 is provided with a stabilizing hole 7, which is set along the conveying direction of the cable to be processed. The cable to be processed at the stabilizing cylinder 6 passes through the stabilizing hole 7, which limits the deviation of the cable to be processed and further avoids the deviation of the cable to be processed, thereby suppressing the lateral harmonic vibration of the cable to be processed during high-speed conveying, thus making the shielding layer more stable and improving the pass rate of the shielding layer.

[0045] As one specific implementation method, refer to Figure 1 and 3As shown, the forming device 4 includes a forming cylinder 41, which is detachably connected to the fixed base 1. The forming cylinder 41 extends along the conveying direction of the cable to be processed. A forming hole 42 is provided on the forming cylinder 41, which is also arranged along the conveying direction of the cable to be processed. When the cable to be processed with a shielding layer enters the forming hole 42, the shielding layer can be evenly wrapped around the surface of the cable to be processed under the action of the inner wall of the forming hole 42.

[0046] In addition, the inner wall of the guide groove 22 of the cable channel 21 near the forming cylinder 41 gradually moves towards its axis from the end away from the forming cylinder 41 until the inner diameter of the guide groove 22 facing the forming cylinder 41 matches the inner diameter of the forming hole 42. At this time, the cable channel 21 can not only bend the copper foil to fit the surface of the cable to be processed, but also guide the copper foil on the cable to gradually press against the surface of the cable until it enters the forming hole 42, so that the edge of the shielding layer can be smoothly guided into the forming hole 42, eliminating the curling or damage to the shielding layer caused by the traditional right angle transition, and effectively protecting the shielding layer.

[0047] As another implementation method, refer to Figure 1 and 3 As shown, it also includes a sizing device 5, which is mounted on the fixed base 1 and located on the side of the forming device 4 opposite to the shielding layer guide device 2. The sizing device 5 is used to tightly adhere the shielding layer covering the surface of the cable to be processed to the surface of the cable, controlling the outer diameter of the formed cable. The sizing device 5 includes a sizing cylinder 51, which extends along the conveying direction of the cable to be processed and is connected to the forming cylinder 41. A sizing hole 52 is provided on the sizing cylinder 51, the inner diameter of which is smaller than the inner diameter of the forming hole 42. Through the compression of the sizing hole 52, the shielding layer can be tightly adhered to the surface of the cable, controlling the outer diameter of the formed cable. The forming device 4 and the sizing device 5 are separately provided, rather than just one sizing device 5 after the shielding layer guide device 2, making the formation of the shielding layer on the cable surface more stable. The combination of the forming device 4 and the sizing device 5 improves the adhesion between the shielding layer and the cable, thus enhancing the effectiveness of the shielding layer.

[0048] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A mold for a longitudinally wrapped shielding layer of a cable, characterized in that, include: Fixed base (1); A shielding layer guide device (2) is provided on the fixed base (1) and extends along the length of the fixed base (1) to guide the shielding layer fed into the shielding layer guide device (2) to adhere to the cable to be processed; The cable positioning device (3) is set on the fixed base (1) and located at one end of the shielding layer guide device (2). It is used to guide the cable to be processed into the shielding layer guide device (2) along the length direction of the shielding layer guide device (2) and limit the deviation of the cable to be processed. The forming device (4) is set on the fixed base (1) and located on the end of the shielding layer guide device (2) facing away from the cable positioning device (3), and is used to cover the shielding layer on the surface of the cable to be processed; The cable to be processed passes through the cable positioning device (3), the shielding layer guiding device (2), and the forming device (4) in sequence.

2. The cable longitudinal shielding layer mold as described in claim 1, characterized in that, Also includes: The sizing device (5) is set on the fixed base (1) and located on the side of the forming device (4) away from the shielding layer guide device (2). It is used to tightly adhere the shielding layer covering the surface of the cable to be processed to the surface of the cable to be processed and control the outer diameter of the formed cable.

3. The cable longitudinal shielding layer mold as described in claim 1, characterized in that, The cable positioning device (3) includes a positioning cylinder (31) with a positioning hole (32) on it. The positioning hole (32) is set along the conveying direction of the cable to be processed. The cable to be processed passes through the positioning hole (32) and can slide within the positioning hole (32).

4. The cable longitudinal shielding layer mold as described in claim 1, characterized in that, The shielding layer guiding device (2) includes a cable channel (21), and a guide groove (22) is provided on the cable channel (21). The guide groove (22) extends along the length direction of the cable channel (21) and its two ends are respectively connected to the cable positioning device (3) and the forming device (4). The cross-section of the guide groove (22) is open.

5. The cable longitudinal shielding layer mold as described in claim 4, characterized in that, The cable channel (21) is provided with at least three sections. Starting from the side closest to the cable positioning device (3), the opening angle of the cross-section of the guide groove (22) on the three sections of the cable channel (21) decreases sequentially.

6. The cable longitudinal shielding layer mold as described in claim 4, characterized in that, A stabilizing cylinder (6) is provided between two adjacent cable channels (21). A stabilizing hole (7) is provided on the stabilizing cylinder (6). The stabilizing hole (7) is provided along the conveying direction of the cable to be processed. The cable to be processed at the stabilizing cylinder (6) passes through the stabilizing hole (7) to limit the deviation of the cable to be processed.

7. The cable longitudinal shielding layer mold as described in claim 5, characterized in that, The forming device (4) includes a forming cylinder (41) with a forming hole (42) on it. The forming hole (42) is set along the conveying direction of the cable to be processed. When the cable to be processed with a shielding layer enters the forming hole (42), the shielding layer wraps around the surface of the cable to be processed.

8. The cable longitudinal shielding layer mold as described in claim 7, characterized in that, The inner wall of the guide groove (22) of the cable channel (21) near the side of the forming cylinder (41) gradually moves towards its axis from the end away from the forming cylinder (41) until the inner diameter of the guide groove (22) facing the forming cylinder (41) matches the inner diameter of the forming hole (42).

9. The cable longitudinal shielding layer mold as described in claim 2, characterized in that, The shielding layer guiding device (2), the cable positioning device (3), the forming device (4), and the sizing device (5) can all be detachably connected to the fixed base (1).

10. The cable longitudinal shielding layer mold as described in claim 1, characterized in that, The fixing base (1) is provided with a connector, which is used to connect the fixing base (1) to the cable processing equipment.

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