A strand die
By designing a stranding die with a curved contact surface and a flared stranding channel, the problem of conductor monofilaments being snapped was solved, improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU ZHONGLI GRP CO LTD
- Filing Date
- 2020-06-24
- Publication Date
- 2026-05-12
AI Technical Summary
现有绞线模具在绞合过程中容易导致导体单丝被夹断,影响线芯质量和生产效率。
The upper and lower molds are designed with curved contact surfaces, and upper and lower grooves are set on the contact surfaces to form a funnel-shaped cable twisting channel, which prevents straight conductor wires from entering the joint gap. The joint gap is curved to prevent breakage, and the mold has a built-in positioning function.
This improved product quality, prevented conductor filaments from being broken, enhanced mold positioning stability, and increased production efficiency.
Smart Images

Figure CN111755175B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a stranding mold and is applicable to the field of wire and cable manufacturing. Background Technology
[0002] A stranding die usually consists of two parts: an upper die and a lower die. The upper die and the lower die form a conductor channel, which can strand several conductor wires of the same or different diameters into a whole in a certain direction and according to certain rules.
[0003] During stranding, the upper and lower dies need to be separated. The conductor wires to be stranded are placed into the conductor channel, the dies are closed, and then the stranding begins. The contact surfaces of the upper and lower dies are flat, forming a gap similar to a straight line between them. The conductor wires and the gap in the dies are on a parallel line. When the dies are closed, it is unavoidable that the conductor wires will be broken by the gap, especially for thinner and softer Category 5 and Category 6 conductors. Breakage of the conductor wires by the gap can easily lead to bulging in the insulation or sheathing of the wire core, or even breakage by the EDM machine, affecting the quality of the wire core and production efficiency. Summary of the Invention
[0004] The purpose of this invention is to provide a stranding die that can prevent conductor filaments from being broken by the upper and lower dies, thereby improving production efficiency and product quality.
[0005] To achieve the above-mentioned technical objectives, the technical solution of the present invention is as follows:
[0006] A stranding die includes an upper die and a lower die. The upper die has an upper contact surface, and the lower die has a lower contact surface. Both the upper and lower contact surfaces are curved surfaces and are in close contact with each other. The upper contact surface has an upper groove, and the lower contact surface has a lower groove. When the upper and lower contact surfaces are in close contact, the upper and lower grooves form a cable stranding channel.
[0007] The cable twisting channel includes an inlet and an outlet, both of which are funnel-shaped.
[0008] When conductor filaments pass through the cable stranding channel of this invention, because the joints on both sides of the cable stranding channel are curved, straight conductor filaments will not enter the joints on both sides of the cable stranding channel, thus ensuring product quality and improving production efficiency. At the same time, the upper and lower dies have built-in positioning functions, making it difficult for the upper and lower dies to misalign and effectively positioning the molds. Attached Figure Description
[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0010] Fig. 1 This is a schematic diagram of the structure of the present invention.
[0011] Fig. 2 This is a schematic diagram of the upper mold structure of the present invention.
[0012] Fig. 3 This is a schematic diagram of the lower mold structure of the present invention. Detailed Implementation
[0013] like Figs. 1-3 As shown, a stranding die includes an upper die 1 and a lower die 2. The upper die 1 has an upper contact surface, and the lower die 2 has a lower contact surface. Both the upper and lower contact surfaces are curved surfaces and are in close contact with each other. The upper contact surface has an upper groove, and the lower contact surface has a lower groove. When the upper and lower contact surfaces are in close contact, the upper and lower grooves form a cable stranding channel 3.
[0014] The cable twisting channel 3 includes an inlet and an outlet, both of which are funnel-shaped.
[0015] When in use, the upper mold 1 and the lower mold 2 are separated. After the conductor monofilament to be twisted is placed into the cable twisting channel 3, the upper mold 1 and the lower mold 2 are closed, and then the stranding is performed.
[0016] When conductor wires pass through the cable stranding channel of this stranding die, the curved joints on both sides of the channel prevent straight conductor wires from entering, ensuring product quality and improving production efficiency. Simultaneously, the upper and lower dies have built-in positioning functions, preventing misalignment between them. This effectively positions the dies and avoids the need for locating pins, further enhancing production efficiency.
[0017] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims
1. A stranding die, characterized in that... Includes an upper mold (1) and a lower mold (2). The upper mold (1) has an upper contact surface, and the lower mold (2) has a lower contact surface. Both the upper and lower contact surfaces are curved surfaces with varying heights along the direction of the conductor filament. The upper and lower contact surfaces are in close contact. The upper contact surface has an upper groove, and the lower contact surface has a lower groove. When the upper and lower contact surfaces are in close contact, the upper and lower grooves form a cable stranding channel (3), and the joints on both sides of the cable stranding channel (3) are curved.
2. The stranding die according to claim 1, characterized in that: The cable twisting channel (3) includes an inlet and an outlet, both of which are flared.