CN-122007804-A - Continuous automatic production method of heald

Abstract

The invention discloses a continuous automatic production method of heald wires, which belongs to the technical field of heald wire production and comprises the following steps of S1, continuously unreeling and straightening a metal strip coil, namely, continuously unreeling and straightening the metal strip coil with high precision, so that the flatness of the unreeled blank meets preset requirements, S2, continuously performing heat treatment, namely, pulling the blank straightened in the step S1 into a sealed continuous heat treatment channel, wherein the heat treatment channel sequentially comprises a preheating section, namely, uniformly heating the blank to a first preset temperature under a protective atmosphere, a step quenching section, namely, transferring the blank into a quenching medium tank for step quenching, firstly cooling in quenching oil in a first temperature range, then completing final quenching in cooling liquid in a second temperature range, and continuously performing tempering treatment on the quenched heald wire under the protective atmosphere, thereby solving the problems of low efficiency, poor consistency and easy deformation of the traditional process.

Inventors

• MEI BAOLONG
• YUE DONGRONG

Assignees

• 岳氏纺机科技(常州)有限公司

Dates

Publication Date

20260512

Application Date

20260116

Claims (8)

1. 1. The continuous automatic production method of the heald wire is characterized by comprising the following steps of: S1, continuously unreeling and straightening a metal strip roll, and straightening the metal strip roll with high precision to ensure that the flatness of the unreeled blank meets the preset requirement; S2, continuous heat treatment, namely, pulling the blank straightened in the step S1 into a closed continuous heat treatment channel; The heat treatment channel comprises, in order: a preheating section for heating the blank to a first preset temperature at a constant speed under a protective atmosphere; the step of graded quenching, namely transferring the blank into a quenching medium tank for graded quenching, firstly cooling in quenching oil in a first temperature range, and then transferring into cooling liquid in a second temperature range to finish final quenching; a continuous tempering section for continuously tempering the quenched heald wire under a protective atmosphere; s3, performing online surface treatment and detection, namely performing continuous surface primary treatment on the blank subjected to the heat treatment in the step S2; s4, blanking and forming, namely synchronously punching and outline blanking the blank in the step S3 through an integrated die to form a heddle with a heddle eye and an end structure; s5, polishing the heald wire in the step S4 by adopting a grinding wheel; S6, sorting and collecting, namely collecting healds in the step S4 into groups through an external collecting device.
2. 2. A method for continuous and automatic production of heddles according to claim 1, characterized in that: In step S2, the relative position between the punching punch and the external blanking edge of the integrated die has a fine adjustment function.
3. 3. A method for continuous and automatic production of heddles according to claim 1, characterized in that: In step S2, the first predetermined temperature is 780 ℃ to 860 ℃.
4. 4. A method for continuous and automatic production of heddles according to claim 1, characterized in that: the temperature of the quenching oil in the first temperature interval is 80-120 ℃, and the cooling time is T1 seconds.
5. 5. A method for continuous and automatic production of heddles according to claim 4, characterized in that: The cooling liquid in the second temperature interval is an aqueous polymer solution, the temperature is 20-40 ℃, and the cooling time is T2 seconds; Where T1/t2=k (strip thickness/strip width), K being a material dependent constant.
6. 6. A method for continuous and automatic production of heddles according to claim 1, characterized in that: In the step S5, the number of grinding wheels is 800-1500 meshes.
7. 7. A method for continuous and automatic production of heddles according to claim 1, characterized in that: The aqueous polymerization solution comprises: 5to 25 percent of polyalkylene glycol polymer, 0.1 to 1.5 percent of antirust agent, 0.05 to 0.5 percent of defoamer and the balance of water.
8. 8. A method for continuous and automatic production of heddles according to claim 1, characterized in that: in the step S4, the punched and molded heald wire is subjected to cleaning treatment, wherein a PH neutral water-based cleaning agent is used in the cleaning treatment, the temperature is controlled to be 40-60 ℃, and the cleaning time is 30 seconds to 2 minutes.

Description

Continuous automatic production method of heald Technical Field The invention relates to a continuous automatic production method of heddles, and belongs to the technical field of heddle production. Background At present, the traditional production method of healds generally adopts a multi-procedure and intermittent production process. Firstly, the metal strip is divided into independent blanks, then the discrete blanks are subjected to heat treatment and surface treatment one by one, and finally, the heald products with heald eyes and specific contours are formed by stamping or other processing modes; After searching, it is found that chinese patent publication No. CN121198826a discloses a method for producing a high wear-resistant metal/plastic composite heald wire for a high-speed jacquard loom, which comprises the steps of preparing stainless steel wires, demagnetizing, annealing, punching to form heald eyes, deburring, polishing, and finally composite injection molding with plastic parts, wherein the process core is the treatment of the molded stainless steel parts, especially the heald eyes, and the composite technology of metal and plastic; however, the production method is still a stepwise and intermittent processing flow, manual transfer and repositioning are needed among the working procedures, the production efficiency is low, the labor intensity is high, the full-flow automation is difficult to realize, the quenching process uses a single medium, the adaptability to the thickness and material change of the strip is not strong, and the problems of heald deformation, cracking or unqualified performance and the like are easily caused. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a continuous automatic production method of heald, which solves the problems of low efficiency, poor consistency and easy deformation of the traditional intermittent process. In order to solve the technical problems, the technical scheme of the invention is that the continuous automatic production method of healds is characterized by comprising the following steps: S1, continuously unreeling and straightening a metal strip roll, and straightening the metal strip roll with high precision to ensure that the flatness of the unreeled blank meets the preset requirement; S2, continuous heat treatment, namely, pulling the blank straightened in the step S1 into a closed continuous heat treatment channel; The heat treatment channel comprises, in order: a preheating section for heating the blank to a first preset temperature at a constant speed under a protective atmosphere; the step of graded quenching, namely transferring the blank into a quenching medium tank for graded quenching, firstly cooling in quenching oil in a first temperature range, and then transferring into cooling liquid in a second temperature range to finish final quenching; a continuous tempering section for continuously tempering the quenched heald wire under a protective atmosphere; s3, performing on-line surface treatment and detection, namely performing continuous surface treatment on the blank subjected to the heat treatment in the step S2; s4, blanking and forming, namely synchronously punching and outline blanking the blank in the step S3 through an integrated die to form a heddle with a heddle eye and an end structure; s5, polishing the heald wire in the step S4 by adopting a grinding wheel S6, sorting and collecting, namely collecting healds in the step S4 into groups through an external collecting device. Further, in step S2, the relative position between the punching punch and the outline blanking edge of the integrated die has a fine adjustment function. Further, in step S2, the first predetermined temperature is 780 ℃ to 860 ℃. Further, the quenching oil temperature in the first temperature interval is 80-120 ℃, and the cooling time is T1 seconds. Further, the cooling liquid in the second temperature interval is an aqueous polymer solution, the temperature is 20-40 ℃, and the cooling time is T2 seconds; Where T1/t2=k (strip thickness/strip width), K being a material dependent constant. Further, in step S5, the number of grinding wheels is 800 mesh to 1500 mesh. Further, the aqueous polymerization solution includes: 5to 25 percent of polyalkylene glycol polymer, 0.1 to 1.5 percent of antirust agent, 0.05 to 0.5 percent of defoamer and the balance of water. Further, the heald wire after punching and forming in the step S4 is subjected to a cleaning process, wherein a PH neutral water-based cleaning agent is used in the cleaning process, the temperature is controlled to be 40-60 ℃, and the cleaning time is 30 seconds to 2 minutes. By adopting the technical scheme, the invention has the following beneficial effects: 1. According to the production method, high-efficiency and low-cost continuous production is realized, and key processes such as unreeling, continuous heat treatment, online surface treatment