CN211368190U

CN211368190U - Stranding device with core wire multilayer structure

Info

Publication number: CN211368190U
Application number: CN201921803243.3U
Authority: CN
Inventors: 马爱国; 倪建胜
Original assignee: Jiangsu Xingda Steel Tyre Cord Co Ltd
Current assignee: Jiangsu Xingda Steel Tyre Cord Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-08-28
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a contain heart yearn multilayer structure's strander, including heart yearn, facial line monofilament, twist with the fingers system machine, outer traction wheel, over twister, straightener and take-up, the heart yearn closes with facial line monofilament strander again behind stress relief device. The utility model discloses earlier through stress relief device before heart yearn and each monofilament plying of facial line are twisted with fingers the system, eliminate the residual stress that the heart yearn was twisted with fingers the system in-process and is produced in advance, utilize the straightener to further eliminate shaping back cord residual stress after the plying is twisted with fingers the system, the product quality of lift cord "elasticity", assurance cord.

Description

Stranding device with core wire multilayer structure

Technical Field

The utility model relates to a steel cord production stranding rope-forming technical field, concretely relates to promote the elastic equipment of cord, mainly used carries out product quality control to the steel cord of two twisters production, and the key "elasticity" performance that improves the steel cord.

Background

Under the promotion of the high-speed development of the automobile industry, the related tire industry also has higher requirements, and the safe, environment-friendly, high-speed and durable tire is more accepted by the market. With the continuous improvement of the strength of the single wire of the steel cord, the elimination of residual stress is very important and unclear in the stranding and rope twisting process, the elasticity of the steel cord can be affected, the edge phenomenon occurs when the cord fabric is cut after calendering in a tire factory, the cord fabric is staggered in the butt joint process, the cord fabric is overlapped and crossed after the butt joint, the tire quality is affected, and the loss is increased. The existing process of the stranding machine tool is analyzed, for example, a 3+9+15 × 0.225ST structure is a multilayer structure, stranding is completed in two times, firstly, a 3+9 × 0.225ST core wire is prefabricated in a DTS model, then the XD-16 model is produced and stranded into a 3+9+15 × 0.225ST cord, and an internal residual stress elimination unclear phenomenon exists in the stranding process of the XD-16 model, so that the elasticity of the cord is low. The elasticity requirement of the conventional user for the steel cord during calendering can be used for realizing the smoothness of the cord fabric by eliminating residual stress through a common production method. Although the existing production process technology can meet the requirements of most users, the elasticity of the cord thread is required by individual customers, the cord thread is frequently fluctuated in calendering and cutting, the belt edge phenomenon is caused when the cord fabric is cut, and the worry of the users on the process quality control of a cord thread production plant is caused.

Disclosure of Invention

The utility model discloses aim at to contain heart yearn multilayer structure plying to become rope twist with fingers in-process residual stress eliminate and untidy lead to cord thread "elasticity" low on the contrary, provide one kind can promote cord thread elasticity, improve the stranding device of "elasticity" performance of steel cord.

The utility model discloses a realize through following technical scheme:

contain heart yearn multilayer structure's strander, including heart yearn unwrapping wire ware, facial line unwrapping wire ware, twist with fingers system machine, outer traction wheel, over twister, straightener and take-up, heart yearn on the heart yearn unwrapping wire ware after stress relief device again with each monofilament on the facial line unwrapping wire ware through the strander that twists with fingers the system machine stranding system.

The stress relieving device is a straightener.

The core wire eliminates the stress of the core wire through the stress eliminating device, the core wire and each single wire of the upper thread are twisted and plied into the cord thread through the twisting machine, the cord thread is pulled by the outer traction wheel to form the required cord thread with set twisting pitch, the secondary stress elimination is carried out through the twister, and finally the final stress elimination is carried out on the cord thread through the straightener.

Compared with the prior art, the utility model following beneficial effect has:

the utility model discloses earlier through stress relief device before heart yearn and facial suture monofilament plying system, eliminate the residual stress that the heart yearn system in-process produced in advance, utilize the straightener to further eliminate shaping back cord residual stress after the plying system of twisting, the product quality of lift cord "elasticity", assurance cord.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Number in the figure: 1. the device comprises a core wire pay-off device, 2 a surface wire pay-off device, 3 a twisting machine, 4 an external traction wheel, 5 a twister, 6 a straightener, 7 a take-up device, 8 and a stress relief device.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): referring to fig. 1, the stranding device with a core wire multilayer structure comprises a core wire pay-off device 1, a surface wire pay-off device 2, a stranding machine 3, an external traction wheel 4, a twisting device 5, a straightener 6, a take-up device 7 and a stress relief device 8, wherein the core wire is subjected to stress relief of the core wire through the stress relief device 8, then is subjected to concentrated stranding with each monofilament of the surface wire through the stranding machine 3 to form a cord thread, the cord thread is pulled through the external traction wheel 4 to form a required cord thread with a set lay length, is subjected to secondary stress relief through the twisting device 5, and finally is subjected to final stress relief through the straightener 6. The utility model discloses increase 3+9 x 0.225ST heart yearn stress relief device 8 at XD-16 model, eliminate the residual stress that the heart yearn was twisted with fingers the system in-process in advance and produce, carry out secondary stress elimination through twisting with fingers 5 again, carry out final stress elimination to the cord through straightener 6 at last, layer control, the residual stress that makes final cord obtains effectively eliminating, the whole flexibility of cord obtains improving, "elasticity" rises, the tape edge curtain cloth phenomenon when avoiding the user to press and decide after prolonging, guarantee the product quality of final cord.

The utility model provides a "elasticity" problem on the low side after 3+9+15 0.225ST cord twists with fingers, guaranteed the whole poker performance of cord simultaneously. The utility model discloses the technique has promoted on the strand XD-16 lathe, and cord elasticity mean value rises 5.5%, and the unanimous reaction result of use of user is better, has solved tire factory's curtain cloth and has decided the band limit problem, has satisfied the user and has required to process quality control, for the promotion of tire quality provides powerful assurance, also provides new thinking and foundation for the promotion of the cord quality that later stage part special specification required simultaneously.

The embodiment is just for easy understanding the technical scheme of the utility model, does not constitute the restriction to the protection scope of the utility model, all do not break away from the content of the technical scheme of the utility model or according to the utility model discloses a technical essence is to any simple modification, the equivalent change and the modification of doing of above scheme, all still belong to within the protection scope of the utility model.

Claims

1. Contain heart yearn multilayer structure's stranding device, including heart yearn unwrapping wire ware, facial wire unwrapping wire ware two, twist with fingers system machine three, outer traction wheel fourth, over twister, straightener sixteenth and take-up device, its characterized in that: the core wire on the core wire unreeling device is twisted with the single wires on the upper wire unreeling device in a stranding mode after passing through the stress eliminating device.

2. The core wire-containing multilayer strander as claimed in claim 1, wherein the stress relieving means is a straightener.

3. The stranding device with the core wire multilayer structure according to claim 1 or 2, characterized in that the core wire is subjected to stress relief through a stress relief device, then is subjected to concentrated stranding through a stranding machine and monofilaments of a surface wire to form a cord, the cord is pulled through an external traction wheel fourth to form a required cord set lay length, is subjected to secondary stress relief through a twister, and finally is subjected to final stress relief through a straightener sixth.