Manufacturing method of stainless steel new energy battery bandage

By precision rolling, annealing, and high-temperature stress annealing of stainless steel strips, combined with the adjustment device of the bending device, the problem of low efficiency in the bending process of stainless steel new energy battery straps has been solved, realizing efficient batch bending and convenient collection and transportation.

CN117884846BActive Publication Date: 2026-04-21WUXI CITY LONGTAI PRECISION ELASTIC MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI CITY LONGTAI PRECISION ELASTIC MATERIAL
Filing Date
2024-02-02
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing technologies suffer from problems such as inconvenience in adjusting stainless steel new energy battery straps during bending and low efficiency in batch bending.

Method used

Stainless steel strips are rolled using a precision rolling mill. After annealing, cooling, multiple rolling processes, and high-temperature stress annealing, long strips are bent and shaped in batches using a bending device. The bending efficiency is adjusted by an adjustment device, and efficient bending is achieved using a bending plate and a reciprocating push-pull rod.

Benefits of technology

This technology allows for adjustments to bending efficiency based on production volume, improving the batch bending efficiency of stainless steel strapping and facilitating collection and transportation.

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Abstract

The application discloses a manufacturing method of a stainless steel new energy battery binding belt, and comprises the following steps: step one: first, a stainless steel strip blank is selected, then one-time rolling is carried out by using a precision rolling mill, after rolling is completed, a steel coil is formed, and then rolling oil on the steel coil after winding is removed; step two: the stainless steel strip after removing the rolling oil in step one is annealed, after annealing is completed, cooling is carried out, after cooling is completed, secondary rolling is carried out, the stainless steel strip after secondary rolling is secondarily wound, secondarily cleaned, and the rolling oil on the stainless steel strip after secondary winding is removed; step three: the stainless steel strip after secondary cleaning in step two is subjected to straightening by tension, after straightening by tension is completed, high-temperature stress annealing is carried out in a tower continuous furnace. The application effectively solves the problems in the prior art that the battery binding belt cannot be manufactured according to the needs, the battery binding belt is inconvenient to bend, and the batch bending efficiency of the battery binding belt is inconvenient to adjust.
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Description

Technical Field

[0001] This invention belongs to the field of new energy battery strapping technology, and relates to a method for manufacturing a stainless steel new energy battery strapping. Background Technology

[0002] With the rapid development of new energy, the speed of new energy battery replacement is also getting faster and faster. New energy battery packs need to use straps to fix multiple battery blocks. Chinese patent CN218591502U discloses a battery steel strip bending machine, including a placement table, and a winding reel is slidably connected to one side of the top of the placement table through a slide groove. By incorporating the moving components and warning lights, as the battery steel strip is continuously fed onto the outer wall of the rotating rod, the outermost battery steel strip contacts the first and second springs. The first spring assists in clamping the battery steel strip, resisting its tendency to reset due to inertia. As the amount of material fed by the battery spring increases, it contracts inward in a circular motion, pushing the second spring to contract as well. When the battery steel strip expands to a specified value, the connecting plate no longer contacts the wire ends of the fixed motor and the external power supply. Instead, the connecting plate contacts the wire ends of the warning lights and the external power supply, causing the warning lights to illuminate and alert the operator that the battery steel strip has been used up. The fixed motor then drives the rewinding box to automatically feed the material. However, this method is inconvenient for bending the battery straps and for adjusting the efficiency of batch bending. Therefore, a manufacturing method for stainless steel new energy battery straps is urgently needed. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a manufacturing method for stainless steel new energy battery straps, which effectively solves the issues of inconvenience in bending battery straps and difficulty in adjusting the batch bending efficiency of battery straps in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A method for manufacturing a stainless steel new energy battery strap includes the following steps:

[0006] Step 1: First, select stainless steel strip billet, then roll it once using a precision rolling mill. After rolling, form it into a steel coil, and then remove the rolling oil from the stainless steel strip after coiling.

[0007] Step 2: Anneal the stainless steel strip that was cleaned of rolling oil in Step 1. After annealing, cool it. After cooling, roll it a second time. After rolling, the stainless steel strip is wound up a second time and cleaned a second time to remove the rolling oil from the stainless steel strip after winding up a second time.

[0008] Step 3: The stainless steel strip that has undergone secondary cleaning in Step 2 is stretched and straightened. After stretching and straightening, it is put into a continuous furnace for high-temperature stress annealing.

[0009] Step 4: The stainless steel strip that has undergone high-temperature stress annealing in Step 3 is reverse tensioned and then coiled into a semi-finished steel coil.

[0010] Step 5: Cut the semi-finished steel coil obtained in Step 4 into strips to make long strip-shaped binding straps.

[0011] Step Six: After punching holes in the long strip of semi-finished strapping, multiple sets of strapping are simultaneously bent and shaped using a bending device to produce finished stainless steel strapping.

[0012] Preferably, the bending device includes a support frame, a worktable fixedly connected to the upper side of the support frame, a drive shaft rotatably connected to the lower side of the support frame, a power motor connected to the right side of the drive shaft, an inverted U-shaped plate fixedly connected to the middle side of the drive shaft, a reciprocating pull plate rotatably connected to the middle upper side of the inverted U-shaped plate, a first connecting rod and a second connecting rod rotatably connected to the left and right sides of the upper side of the reciprocating pull plate, an adjustment device provided on the upper side of the first connecting rod, a rotating shaft provided on the upper side of the adjustment device, the rotating shaft rotatably connected to the support frame, an adjustment disc fixedly connected to the outer end of the rotating shaft, a reciprocating push-pull rod hinged on the upper side of the second connecting rod, a bending plate fixedly connected to the upper side of the reciprocating push-pull rod, and the bending plate slidably connected to the worktable.

[0013] Preferably, the adjusting device includes an adjusting screw connected to the rotating shaft via a bevel gear set, a movable sleeve threaded to the lower side of the adjusting screw, short shafts fixedly connected to the left and right sides of the middle of the movable sleeve, the left short shaft being rotatably connected to the first connecting rod, and an arc-shaped block fixedly connected to the right short shaft, a fixed rib plate fixedly connected to the inner side of the support frame, a drive shaft rotatably connected to the fixed rib plate, an arc-shaped plate fixedly provided on the upper side of the fixed rib plate, an arc-shaped groove opened on the inner side of the arc-shaped plate, an arc-shaped block slidingly connected to the arc-shaped groove, a connecting plate fixedly connected to the lower side of the worktable, a rotating shaft rotatably connected to the connecting plate, a flip plate rotatably connected to the inner end of the rotating shaft, and an outer side of the flip plate rotatably connected to the adjusting screw.

[0014] Preferably, a slide rod is fixedly installed on the upper left and right sides of the worktable, a top plate is slidably connected to the front of the worktable, the left and right sides of the top plate are slidably connected to the slide rod, and a plurality of evenly distributed top rods are fixedly connected to the right side of the top plate, forming a placement cavity between two adjacent top rods.

[0015] Preferably, a baffle is fixedly connected to the rear side of the workbench, and the baffle has multiple evenly distributed and identically sized threading slots, which are horizontally aligned with the placement cavity.

[0016] Preferably, the workbench surface has an opening groove on the right side, and the bent plate is slidably connected to the opening groove.

[0017] Preferably, a placement frame is fixedly connected to the rear end of the support frame, and a placement box with an open upper side is provided on the placement frame.

[0018] Preferably, the lower side of the support frame is fixedly connected with multiple evenly distributed feet of the same size.

[0019] Preferably, the reciprocating push-pull rod is slidably connected to a sleeve on its outer side, the sleeve is fixedly connected to a fixed shaft, and the fixed shaft is fixedly connected to the support frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When it is necessary to adjust the bending efficiency of the long stainless steel strap according to the production volume of the battery strap, the rotating shaft is rotated. The rotation of the rotating shaft is transmitted through the bevel gear set, which in turn drives the moving sleeve to move in the up and down direction, thereby changing the angle of the first link. Due to the change in the position of the first link, the stroke of the second link driving the reciprocating push-pull rod changes, thereby changing the bending efficiency of the bending plate.

[0022] 2. By placing the long strips of stainless steel strapping into the placement cavity, and then moving the top plate towards the baffle, the top plate drives the long strips of stainless steel strapping into the threading groove, which facilitates the batch bending of the long strips of stainless steel strapping.

[0023] 3. The bent stainless steel straps can be easily collected and transported by placing them in boxes. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the isometric structure of the bending device of the present invention.

[0025] Figure 2 This is a schematic diagram of the bent plate structure of the present invention.

[0026] Figure 3 This is a schematic diagram of the rotating shaft structure of the present invention.

[0027] Figure 4 This is a schematic diagram of the adjusting screw structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the sleeve structure of the present invention.

[0029] In the diagram: 1. Placement box; 2. Placement rack; 3. Support frame; 4. Workbench; 5. Top plate; 6. Slide rod; 7. Baffle; 8. Belt groove; 9. Bending plate; 10. Adjusting plate; 11. Rotating shaft; 12. Reciprocating push-pull rod; 13. Fixed rib plate; 14. Drive shaft; 15. Inverted U-shaped plate; 16. Reciprocating pull plate; 17. First connecting rod; 18. Second connecting rod; 19. Adjusting screw; 20. Moving sleeve; 21. Fixed shaft; 22. Arc block; 23. Arc plate; 24. Arc groove; 25. Sleeve; 26. Flip plate; 27. Limiting rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5 This invention provides a technical solution: a method for manufacturing a stainless steel new energy battery strap, comprising the following steps:

[0032] Step 1: First, select stainless steel strip billet, then roll it once using a precision rolling mill. After rolling, form it into a steel coil, and then remove the rolling oil from the stainless steel strip after coiling.

[0033] Step 2: Anneal the stainless steel strip that was cleaned of rolling oil in Step 1. After annealing, cool it. After cooling, roll it a second time. After rolling, the stainless steel strip is wound up a second time and cleaned a second time to remove the rolling oil from the stainless steel strip after winding up a second time.

[0034] Step 3: The stainless steel strip that has undergone secondary cleaning in Step 2 is stretched and straightened. After stretching and straightening, it is put into a continuous furnace for high-temperature stress annealing.

[0035] Step 4: The stainless steel strip that has undergone high-temperature stress annealing in Step 3 is reverse tensioned and then coiled into a semi-finished steel coil.

[0036] Step 5: Cut the semi-finished steel coil obtained in Step 4 into strips to make long strip-shaped binding straps.

[0037] Step Six: After punching holes in the long strip of semi-finished strapping, multiple sets of strapping are simultaneously bent and shaped using a bending device to produce finished stainless steel strapping.

[0038] The bending device includes a support frame 3, with a worktable 4 fixedly connected to the upper side of the support frame 3. A drive shaft 14 is rotatably connected to the lower side of the support frame 3. A power motor is connected to the right side of the drive shaft 14. An inverted U-shaped plate 15 is fixedly connected to the middle side of the drive shaft 14. A reciprocating pull plate 16 is rotatably connected to the middle of the upper side of the inverted U-shaped plate 15. A first connecting rod 17 and a second connecting rod 18 are rotatably connected to the left and right sides of the upper side of the reciprocating pull plate 16. An adjustment device is provided on the upper side of the first connecting rod 17. A rotating shaft 11 is provided on the upper side of the adjustment device. The rotating shaft 11 is rotatably connected to the support frame 3. An adjustment disc 10 is fixedly connected to the outer end of the rotating shaft 11. A reciprocating push-pull rod 12 is hinged on the upper side of the second connecting rod 18. A bending plate 9 is fixedly connected to the upper side of the reciprocating push-pull rod 12. The bending plate 9 is slidably connected to the worktable 4.

[0039] First, after placing the bending device in a suitable location, place the long strip of tie-up semi-finished product on the workbench 4. Then, rotate the adjusting plate 10, which drives the rotating shaft 11 to rotate. The rotation of the rotating shaft 11, through the transmission of the adjusting device, adjusts the first connecting rod 17 to a suitable position. By turning on the motor, the motor drives the drive shaft 14 to rotate, which in turn drives the inverted U-shaped plate 15 to rotate. Since the reciprocating pull plate 16 is connected to the inverted U-shaped plate 15, it drives the reciprocating pull plate 16 to perform up-and-down reciprocating motion. Since the first connecting rod 17 and the second connecting rod 18 are connected to the reciprocating pull plate 16, the second connecting rod 18 performs up-and-down reciprocating motion. The second connecting rod 18 drives the reciprocating push-pull rod 12 to perform up-and-down reciprocating motion. The reciprocating push-pull rod 12 drives the bending plate 9 to perform batch bending of the long strip of tie-up semi-finished product.

[0040] The adjusting device includes an adjusting screw 19 connected to the rotating shaft 11 via a bevel gear set. A movable sleeve 20 is threadedly connected to the lower side of the adjusting screw 19. Short shafts are fixedly connected to the left and right sides of the middle of the movable sleeve 20. The left short shaft is rotatably connected to the first connecting rod 17, and the right short shaft is fixedly connected to an arc-shaped block 22. A fixed rib plate 13 is fixedly connected to the inner side of the support frame 3. The drive shaft 14 is rotatably connected to the fixed rib plate 13. An arc-shaped plate 23 is fixedly provided on the upper side of the fixed rib plate 13. An arc-shaped groove 24 is opened on the inner side of the arc-shaped plate 23. The arc-shaped block 22 is slidably connected to the arc-shaped groove 24. A connecting plate is fixedly connected to the lower side of the worktable surface 4. The rotating shaft 11 is rotatably connected to the connecting plate. A flip plate 26 is rotatably connected to the inner end of the rotating shaft 11. The outer side of the flip plate 26 is rotatably connected to the adjusting screw 19.

[0041] When adjusting the bending efficiency of the long stainless steel straps based on the production volume, the first step is to rotate the shaft 11. Since the connecting plate and adjusting screw 19 are rotatably connected, and the shaft 11 is also rotatably connected, the rotation of the shaft 11, through the transmission of the bevel gear set, drives the adjusting screw 19 to swing, causing the connecting plate to swing as well. After the arc-shaped block 22 slides within the arc-shaped groove 24, the shaft 11 rotates, driving the adjusting screw 19 to rotate, which in turn drives the moving sleeve 20 to move vertically, thus changing the angle of the first connecting rod 17. Due to the change in the position of the first connecting rod 17, the stroke of the second connecting rod 18 driving the reciprocating push-pull rod 12 changes, thereby altering the bending efficiency of the bending plate 9. A limit rod 27 is fixedly connected to the lower end of the adjusting screw 19.

[0042] The workbench 4 is fixedly provided with slide rods 6 on both the left and right sides. The front of the workbench 4 is slidably connected to a top plate 5. The left and right sides of the top plate 5 are slidably connected to the slide rods 6. The right side of the top plate 5 is fixedly connected with multiple evenly distributed top rods, and a placement cavity is formed between two adjacent top rods.

[0043] A baffle 7 is fixedly connected to the rear side of the workbench 4. The baffle 7 has multiple evenly distributed and identically sized threading grooves 8, which are horizontally aligned with the placement cavity.

[0044] By placing long strips of stainless steel strapping into the placement cavity, and then moving the top plate 5 towards the baffle 7, the top plate 5 drives the long strips of stainless steel strapping into the strapping groove 8, which facilitates the batch bending of the long strips of stainless steel strapping.

[0045] The workbench 4 has an opening groove on its right side, and the bending plate 9 is slidably connected to the opening groove.

[0046] The bending plate 9 is slidably connected to the opening groove, which facilitates the up and down movement of the bending plate 9 to bend the stainless steel strapping.

[0047] The support frame 3 is fixedly connected to the rear end of the placement frame 2, and the placement frame 2 is provided with a placement box 1 with an open upper side.

[0048] The placement box 1 facilitates the collection and transportation of bent stainless steel strapping.

[0049] The support frame 3 has multiple evenly distributed and identical feet fixedly connected to its lower side.

[0050] The base provides support for the bending device, facilitating the batch bending of stainless steel strapping.

[0051] The reciprocating push-pull rod 12 is slidably connected to a sleeve 25, and the sleeve 25 is fixedly connected to a fixed shaft 21, which is fixedly connected to the support frame 3.

[0052] The sliding connection between the reciprocating push-pull rod 12 and the sleeve 25 facilitates the reciprocating motion of the reciprocating push-pull rod 12 in the up and down directions.

[0053] First, after placing the bending device in a suitable location, place the long strip of tie-up semi-finished product on the workbench 4. Then, rotate the adjusting plate 10, which drives the rotating shaft 11 to rotate. The rotation of the rotating shaft 11, through the transmission of the adjusting device, adjusts the first connecting rod 17 to a suitable position. By turning on the motor, the motor drives the drive shaft 14 to rotate, which in turn drives the inverted U-shaped plate 15 to rotate. Since the reciprocating pull plate 16 is connected to the inverted U-shaped plate 15, it drives the reciprocating pull plate 16 to perform up-and-down reciprocating motion. Since the first connecting rod 17 and the second connecting rod 18 are connected to the reciprocating pull plate 16, the second connecting rod 18 performs up-and-down reciprocating motion. The second connecting rod 18 drives the reciprocating push-pull rod 12 to perform up-and-down reciprocating motion. The reciprocating push-pull rod 12 drives the bending plate 9 to perform batch bending of the long strip of tie-up semi-finished product.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manufacturing method of a stainless steel new energy battery bandage, characterized by comprising the following steps: Step one: first select a stainless steel strip blank, then use a precision rolling mill for primary rolling, after rolling, wind into a steel coil, then remove the rolling oil on the stainless steel strip after winding; Step two: the stainless steel strip with rolling oil removed in step one is annealed, after annealing, it is cooled, after cooling, it is secondarily rolled, the stainless steel strip after secondary rolling is secondarily wound, secondarily cleaned, and the rolling oil on the stainless steel strip after secondary winding is removed; Step three: the stainless steel strip after secondary cleaning in step two is drawn and straightened, after drawing and straightening, it is put into a tower continuous furnace for high temperature stress annealing; Step four: the stainless steel strip after high temperature stress annealing in step three is reversely drawn and straightened and wound into a semi-finished product coil; Step five: the semi-finished product coil obtained in step four is cut and slitted to make a long strip-shaped bandage semi-finished product; Step six: after punching the long strip-shaped bandage semi-finished product, simultaneously bend and shape multiple groups of bandages through a bending device to make a stainless steel bandage finished product; The bending device comprises a support frame, a workbench surface is fixedly connected to the upper side of the support frame, a driving shaft is rotatably connected to the lower side of the support frame, a power motor is connected to the right side of the driving shaft, an inverted U-shaped plate is fixedly connected to the middle side of the driving shaft, a reciprocating pull plate is rotatably connected to the upper side of the middle part of the inverted U-shaped plate, a first connecting rod and a second connecting rod are rotatably connected to the upper side of the left and right parts of the reciprocating pull plate, an adjusting device is arranged on the upper side of the first connecting rod, a rotating shaft is arranged on the upper side of the adjusting device, the rotating shaft is rotatably connected with the support frame, an adjusting disc is fixedly connected to the outer end of the rotating shaft, a reciprocating push-pull rod is hingedly arranged on the upper side of the second connecting rod, a bending plate is fixedly connected to the upper side of the reciprocating push-pull rod, and the bending plate is slidably connected with the workbench surface. The adjusting device comprises an adjusting screw connected with the rotating shaft through a bevel gear set, a moving sleeve is threadedly connected to the lower side of the adjusting screw, short shafts are fixedly connected to the middle part of the moving sleeve, the left short shaft is rotatably connected with the first connecting rod, the right short shaft is fixedly connected with an arc-shaped block, a fixed rib plate is fixedly connected to the inner side of the support frame, the driving shaft is rotatably connected with the fixed rib plate, an arc-shaped plate is fixedly arranged on the upper side of the fixed rib plate, an arc-shaped groove is formed in the inner side of the arc-shaped plate, the arc-shaped block is slidably connected with the arc-shaped groove, a connecting plate is fixedly connected to the lower side of the workbench surface, the rotating shaft is rotatably connected with the connecting plate, a turnover plate is rotatably connected to the inner end of the rotating shaft, and the turnover plate is rotatably connected with the adjusting screw on the outer side; the rotating shaft is driven to rotate through the transmission of the bevel gear set, the adjusting screw is swung, the arc-shaped block slides in the arc-shaped groove, and then the rotating shaft is rotated to drive the adjusting screw to rotate, thereby driving the moving sleeve to move up and down, so as to change the angle of the first connecting rod. Sliding rods are fixedly arranged on the left and right parts of the upper side of the workbench surface, a top plate is slidably connected to the front side of the workbench surface, the top plate is slidably connected with the sliding rods on the left and right sides, a plurality of top rods are fixedly connected to the right side of the top plate, and a placing cavity is formed between two adjacent top rods.

2. The method for manufacturing stainless steel new energy battery bandage according to claim 1, characterized in that: ​ 3. The method for manufacturing stainless steel new energy battery bandage according to claim 1, characterized in that: The workbench rear side is fixedly connected with a baffle, the baffle is provided with a plurality of uniformly distributed and same size belt passing grooves, and the belt passing grooves horizontally correspond to the placing cavity.

4. The method of manufacturing a stainless steel new energy battery bandage according to claim 1, characterized in that: The workbench right side is provided with an opening groove, and the bending plate is slidably connected with the opening groove.

5. The method of manufacturing a stainless steel new energy battery bandage according to claim 1, characterized in that: The support frame rear end is fixedly connected with a placing frame, and the placing frame is provided with an upper open placing box.

6. The method for manufacturing stainless steel new energy battery bandage according to claim 5, characterized in that: The support frame lower side is fixedly connected with a plurality of uniformly distributed and same size foot screws.

7. The method of manufacturing stainless steel new energy battery bandage according to claim 1, characterized in that: The reciprocating push-pull rod outer side is slidably connected with a sleeve, the sleeve is fixedly connected with a fixed shaft, and the fixed shaft is fixedly connected with the support frame.

Citation Information

Patent Citations

  • Bending machine for steel strip of battery

    CN218591502U

  • Production method for stainless steel belt for tape spring

    CN105251803A

  • Anti-shaking bending device for trailer accessory production

    CN217748782U