Coaxial cable supercritical physical foaming mold
By setting a clamping and tensioning mechanism in the supercritical physical foaming mold of coaxial cable, the problem of wire core bending was solved, the straightness of the cable was achieved, the cable quality was improved and the cost was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOYUANHUI NEW MATERIAL TECHNOLOGY (SUZHOU) CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-04
AI Technical Summary
During the supercritical physical foaming process of coaxial cables, the core is prone to bending, which affects the quality of the cable manufacturing.
A mold including a clamping mechanism and a tensioning mechanism was designed. By clamping both ends of the cable core and adjusting the position using the tensioning mechanism, the core is kept in a straight state, ensuring the straightness of the core inside the mold.
It ensures the quality of coaxial cables, is simple to operate and low in cost, and is suitable for a wide range of applications.
Smart Images
Figure CN224588444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coaxial cable production technology, specifically to a supercritical physical foaming mold for coaxial cables. Background Technology
[0002] Coaxial cables are widely used in communications, television and other fields. The performance of their insulation layer plays a key role in the overall performance of the cable. Supercritical physical foaming technology is an important method for preparing high-performance coaxial cable insulation layers.
[0003] Existing supercritical physical foaming molds for coaxial cables require placing the cable core inside the mold cavity before injecting foaming material for molding. However, the cable core is prone to bending, affecting the quality of the subsequent coaxial cable manufacturing. To address this issue, we propose a supercritical physical foaming mold for coaxial cables. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a supercritical physical foaming mold for coaxial cables, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a supercritical physical foaming mold for coaxial cables, comprising: a substrate, a lower mold fixedly mounted on the top surface of the substrate, an upper mold sleeved on the lower mold via its own guide post, a clamping mechanism provided on the sides of the lower mold and the upper mold, and a tensioning mechanism provided on the substrate; the clamping mechanism includes a frame, a clamping plate slidably mounted on the frame, and an embedded nut embedded in the inner cavity sidewall of the frame, the frame is also threadedly connected to a screw via the embedded nut, a bearing is provided at the lower end of the screw, and the screw is rotatably connected to the clamping plate via the bearing; the tensioning mechanism includes a slide block slidably connected to the substrate and a central shaft rotatably connected to the substrate, a connecting frame fixedly mounted on the top surface of the slide block, and the slide block is fixedly connected to the frame via the connecting frame, a lead screw fixedly mounted on the outer surface of the central shaft, the lead screw being threadedly connected to the slide block, and a turntable fixedly mounted on the end of the central shaft passing through the substrate.
[0006] Preferably, the end face of the clamping plate is fixedly installed with a protrusion, and the inner wall of the frame is provided with a groove for accommodating the protrusion.
[0007] Preferably, a knob is fixedly installed at the end of the screw that passes through the frame, and the outer surface of the knob is provided with anti-slip texture.
[0008] Preferably, the clamp is provided with an arc-shaped notch that contacts the cable core, and a rubber pad is provided on the arc-shaped surface of the arc-shaped notch of the clamp.
[0009] Preferably, the outer surface of the embedded nut is fixedly fitted with an interlocking protrusion ring that connects to the frame.
[0010] Preferably, the connection end between the screw and the clamping plate is located at the center of the side of the clamping plate.
[0011] Preferably, the turntable has a protruding button on its side, and the protruding button has a cylindrical structure design.
[0012] Preferably, the axis of the protruding button is offset from the axis of the turntable, and the axis of the turntable coincides with the axis of the central shaft.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The supercritical physical foaming mold for coaxial cable uses a clamping mechanism to hold both ends of the cable core, and a tensioning mechanism to straighten the core by adjusting the position of the clamping mechanism, thereby ensuring that the core inside the mold is in a straight state, thus ensuring the quality of the coaxial cable produced by the mold and meeting the actual use requirements.
[0014] 2. The supercritical physical foaming mold for coaxial cables is composed of common mechanical parts for both the clamping and tensioning mechanisms. The overall operation is simple and convenient, and the overall structure is inexpensive, making it suitable for a wide range of practical applications. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model in the mold-closed state; Figure 2 This is a schematic diagram of the overall structure of this utility model in its modular state. Figure 3 This is a side view of the overall structure of this utility model in the mold-closed state; Figure 4 This is an exploded view of the clamping mechanism of this utility model; Figure 5 This is a cross-sectional schematic diagram of the substrate structure of this utility model.
[0016] In the diagram: 1. Base plate; 2. Lower mold; 3. Upper mold; 4. Clamping mechanism; 41. Frame; 42. Clamping plate; 43. Screw; 44. Bearing; 45. Embedded nut; 46. Knob; 47. Protrusion; 5. Tensioning mechanism; 51. Connecting frame; 52. Slide; 53. Turntable; 54. Protruding knob; 55. Central shaft; 56. Lead screw. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-5 A supercritical physical foaming mold for coaxial cables includes: a substrate 1, a lower mold 2 fixedly mounted on the top surface of the substrate 1, an upper mold 3 sleeved on the lower mold 2 through its own guide post, a clamping mechanism 4 provided on the side of the lower mold 2 and the upper mold 3, and a tensioning mechanism 5 provided on the substrate 1.
[0019] The clamping mechanism 4 includes a frame 41, on which a clamping plate 42 is slidably mounted. An embedded nut 45 is also embedded in the inner wall of the frame 41. A screw 43 is threadedly connected to the frame 41 via the embedded nut 45. A bearing 44 is provided at the lower end of the screw 43, and the screw 43 is rotatably connected to the clamping plate 42 via the bearing 44. A protrusion 47 is fixedly mounted on the end face of the clamping plate 42. A groove is formed in the inner wall of the frame 41 to accommodate the protrusion 47, ensuring a stable sliding connection between the clamping plate 42 and the frame 41. To enhance the overall structural stability of the device, a knob 46 is fixedly installed at the end of the screw 43 that passes through the frame 41. The outer surface of the knob 46 is provided with anti-slip texture. An arc-shaped notch is provided on the clamping plate 42 to contact the cable core, and a rubber pad is provided on the arc-shaped surface of the notch. An embedded nut 45 is fixedly installed on the outer surface to connect with the frame 41. The connection end between the screw 43 and the clamping plate 42 is located at the center of the side of the clamping plate 42, so that the clamping plate 42 is subjected to uniform force after the screw 43 is rotated, in order to meet the actual clamping requirements.
[0020] The tensioning mechanism 5 includes a slide block 52 slidably connected to the base plate 1 and a central shaft 55 rotatably connected to the base plate 1. A connecting frame 51 is fixedly installed on the top surface of the slide block 52, and the slide block 52 is fixedly connected to the frame 41 through the connecting frame 51. A lead screw 56 is fixedly installed on the outer surface of the central shaft 55, and the lead screw 56 is threadedly connected to the slide block 52. A turntable 53 is fixedly installed at the end of the central shaft 55 that passes through the base plate 1. A protruding button 54 is provided on the side of the turntable 53. The protruding button 54 is designed with a cylindrical structure, which can increase the torque of rotating the turntable 53, so that the user can rotate the turntable 53 in a more effortless way. The axis of the protruding button 54 is offset from the axis of the turntable 53, and the axis of the turntable 53 coincides with the axis of the central shaft 55.
[0021] Working principle: When straightening the cable core inside the mold, the screw 43 is rotated by the knob 46. The screw 43 pushes the clamping plate 42 to slide towards the end of the core. The two clamping plates 42 on the frame 41 cooperate with each other to clamp and fix the end of the core at the center of the frame 41. Then, the turntable 53 drives the central shaft 55 and the lead screw 56 fixed on the outer surface of the central shaft 55 to rotate together inside the base plate 1. The frame 41 and the slide 52 are fixedly connected by the connecting frame 51. Therefore, after the lead screw 56 rotates, it can drive the slide 52 to drive the frame 41 to slide, and simultaneously pull the core to straighten the cable core, thus forming the cable in conjunction with the mold.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A supercritical physical foaming mold for coaxial cables, characterized in that, include: The substrate (1) has a lower mold (2) fixedly mounted on its top surface. The lower mold (2) is connected to an upper mold (3) through its own guide post. The sides of the lower mold (2) and the upper mold (3) are provided with a clamping mechanism (4). The substrate (1) is also provided with a tensioning mechanism (5). The clamping mechanism (4) includes a frame (41), on which a clamping plate (42) is slidably disposed, and an embedded nut (45) is also embedded in the inner cavity side wall of the frame (41). The frame (41) is also threadedly connected to a screw (43) through the embedded nut (45). A bearing (44) is provided at the lower end of the screw (43), and the screw (43) is rotatably connected to the clamping plate (42) through the bearing (44). The tensioning mechanism (5) includes a slide block (52) slidably connected to the substrate (1) and a central shaft (55) rotatably connected to the substrate (1). A connecting frame (51) is fixedly installed on the top surface of the slide block (52), and the slide block (52) is fixedly connected to the frame frame (41) through the connecting frame (51). A lead screw (56) is fixedly installed on the outer surface of the central shaft (55), and the lead screw (56) is threadedly connected to the slide block (52). A turntable (53) is fixedly installed at the end of the central shaft (55) that passes through the substrate (1).
2. The supercritical physical foaming mold for coaxial cables according to claim 1, characterized in that, The end face of the clamp (42) is fixedly installed with a protrusion (47), and the inner wall of the frame (41) is provided with a groove for accommodating the protrusion (47).
3. The supercritical physical foaming mold for coaxial cables according to claim 1, characterized in that, A knob (46) is fixedly installed at the end of the screw (43) that passes through the frame (41), and the outer surface of the knob (46) is provided with anti-slip texture.
4. The supercritical physical foaming mold for coaxial cables according to claim 1, characterized in that, The clamp (42) has an arc-shaped notch that contacts the cable core, and the arc surface of the arc-shaped notch of the clamp (42) is provided with a rubber pad.
5. The supercritical physical foaming mold for coaxial cables according to claim 1, characterized in that, The outer surface of the embedded nut (45) is fixedly fitted with an interlocking protrusion ring that is connected to the frame (41).
6. The supercritical physical foaming mold for coaxial cables according to claim 1, characterized in that, The connection end between the screw (43) and the clamp (42) is located at the center of the side of the clamp (42).
7. The supercritical physical foaming mold for coaxial cables according to claim 1, characterized in that, The turntable (53) has a protruding button (54) on its side, and the protruding button (54) has a cylindrical structure design.
8. The supercritical physical foaming mold for coaxial cables according to claim 7, characterized in that, The axis of the protruding button (54) is offset from the axis of the turntable (53), and the axis of the turntable (53) coincides with the axis of the central axis (55).