A steel banding machine for transformer cores

Abstract

The application relates to a steel band binding machine for a transformer core, which is characterized in that the structure comprises a cross beam frame assembly driven by a walking motor and connected to a main guide rail on a binding machine support, a binding tool assembly slidably connected to the cross beam frame assembly, a handle connected to the binding tool assembly, one clamp assembly arranged on each side of the binding tool assembly, a workpiece fixed between the two clamp assemblies and penetrating through the binding tool assembly, and one clamp assembly fixed and the other clamp assembly installed on a movable frame assembly. The application has the following advantages: 1) semi-automatic operation is adopted, and the efficiency of binding the steel band is greatly improved compared with manual binding; and 2) a corresponding automatic binding process can effectively improve the binding quality, and the steel band is uniformly bound with constant force and speed.

Description

Technical Field

[0001] This invention relates to a steel strapping machine for transformer cores, specifically to a binding process and packaging equipment that can quickly package multiple transformer cores and clamps with steel straps, belonging to the technical field of transformer core fasteners. Background Technology

[0002] The core is the main magnetic circuit part of a transformer. It is usually made of hot-rolled or cold-rolled silicon steel sheets with high silicon content and coated with insulating varnish. After production and processing, the core is transported to the assembly workshop for transformer assembly.

[0003] Large transformer cores are prone to deformation due to their weight and size. To address this issue, steel tension straps are introduced into the core design. The purpose of the steel tension straps is to maintain the position of the upper and lower yokes of the core, which are more susceptible to deformation and quality problems. If the steel straps are used directly without any binding or insulation, they may rust or damage the yoke surface. Therefore, insulating tape is required to be bound around the steel straps. In existing technology, the binding of steel tension straps is generally done manually by operators, which suffers from low binding accuracy and is time-consuming and labor-intensive. Summary of the Invention

[0004] The present invention proposes a steel strap binding machine for transformer cores, which aims to overcome the above-mentioned shortcomings of the existing technology and realize the rapid binding of insulating tape around steel straps.

[0005] The technical solution of the present invention: a steel strip binding machine for transformer cores, the structure of which includes a crossbeam frame assembly driven by a walking motor and connected to a main guide rail on a binding machine support, a binding tool assembly slidably connected to the crossbeam frame assembly, a handle connected to the binding tool assembly, a clamping assembly on each side of the binding tool assembly, a workpiece fixed between the two clamping assemblies and passing through the binding tool assembly, one clamping assembly being fixed and the other clamping assembly being mounted on a movable frame assembly.

[0006] Preferably, the beam frame assembly includes a beam with one end vertically supported on the top of the column support, a guide rail attached to the bottom surface of the beam near the other end, the column support being slidably connected to the main guide rail via a slider at the bottom end, a travel motor mounted on the side wall of the column support and its output end connected to a travel gear, the travel gear meshing with a rack arranged along the main guide rail.

[0007] Preferably, the clamping assembly includes a clamp with a key at the end. The clamp of the fixed clamping assembly is fixed to the rear column at one end of the binding machine bracket. The clamp of the other clamping assembly is installed on the front column of the movable frame assembly. The front column is installed on the bracket. One end of the bracket is slidably connected to the main guide rail via a slider, and the other end is vertically connected to a vertical support. The bottom end of the vertical support is connected to a pulley that contacts the binding machine bracket.

[0008] Preferably, the binding tool assembly includes a connecting seat, a handle connected to the connecting seat, one end of the connecting seat being slidably connected to the guide rail via a slider, two cable tie fixing seats mounted on the connecting seat, each cable tie fixing seat being mounted with a cable tie tray, the two cable tie fixing seats being mounted on the same slewing bearing, the workpiece passing through the hollow center of the slewing bearing and both ends being fixed to the clamps of the two-sided clamping assemblies, the connecting seat also being equipped with a binding motor, the output end of the binding motor being connected to a drive wheel, the drive wheel meshing with the toothed outer edge of the slewing bearing, and both the drive wheel and the slewing bearing being rotatably connected to the connecting seat.

[0009] A method for using a steel strapping machine for transformer cores includes the following steps:

[0010] S1: Adjust the crossbeam frame assembly according to the starting position. The crossbeam frame assembly should be located at the position where the steel tie straps need to be tied.

[0011] S2: Adjust the clamping assembly according to the shape and length of the steel strap, place the workpiece (steel strap) and tighten the clamps at both ends;

[0012] S3: Manually install the cable ties onto the cable tie reel and adjust their position on the workpiece;

[0013] S4: The operator starts the strapping machine and begins the strapping process;

[0014] S5: The binding motor starts to rotate, and the binding tool assembly attached to the binding strap begins to automatically bind the workpiece;

[0015] S6: The crossbeam frame assembly is connected to the travel motor, which moves forward at a constant speed. During this process, the operator uses a handle to rotate the crossbeam.

[0016] Advantages of this invention: 1) It adopts semi-automatic operation, which greatly improves the efficiency of binding steel straps compared with manual binding;

[0017] 2) The corresponding automatic binding process can effectively improve the binding quality, and bind the steel straps evenly with constant force and speed. Attached Figure Description

[0018] Figure 1 This is a process flow diagram of the steel strapping machine for the transformer core of the present invention during operation.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the steel strap binding machine for the transformer core of the present invention.

[0020] Figure 3 yes Figure 2 A schematic diagram of the middle crossbeam frame assembly.

[0021] Figure 4 yes Figure 2 A schematic diagram of the rack and pinion system.

[0022] Figure 5 yes Figure 2 A schematic diagram of the structure of the activity framework component.

[0023] Figure 6 yes Figure 2 A schematic diagram of the slider and connector of the binding tool component.

[0024] Figure 7 yes Figure 2 A schematic diagram of the cable tie tray of the binding tool component.

[0025] Figure 8 yes Figure 2 A schematic diagram of the cable tie fixing seat of the binding tool component.

[0026] Figure 9 yes Figure 2 A schematic diagram of the slewing bearing and drive wheel of the tool assembly in the middle.

[0027] Figure 10 yes Figure 2 A schematic diagram of the structure of the clamp assembly.

[0028] In the diagram, 1 is the binding machine bracket, 2 is the main guide rail, 3 is the crossbeam frame assembly, 4 is the movable frame assembly, 5 is the handle, 6 is the binding tool assembly, 7 is the travel motor, 8 is the binding motor, 9 is the clamp assembly, 10 is the front column, 11 is the rear column, 12 is the workpiece, 13 is the rack, 14 is the beam, 15 is the column support, 16 is the guide rail, 17 is the slider, 18 is the travel gear, 19 is the bracket, 20 is the vertical support, 21 is the slider, 22 is the pulley, 23 is the slider, 24 is the connecting seat, 25 is the cable tie tray, 26 is the cable tie fixing seat, 27 is the slewing bearing, 28 is the drive wheel, 29 is the key, and 30 is the clamp. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0030] like Figure 1-10 As shown, a steel strip binding machine for transformer cores includes a crossbeam frame assembly 3 driven by a walking motor 7 and connected to a main guide rail 2 on a binding machine support 1. A binding tool assembly 6 is slidably connected to the crossbeam frame assembly 3. The binding tool assembly 6 is connected to a handle 5. A clamp assembly 9 is provided on each side of the binding tool assembly 6. The workpiece 12 is fixed between the two clamp assemblies 9 and passes through the binding tool assembly 6. One clamp assembly 9 is fixed and the other clamp assembly 9 is installed on a movable frame assembly 4.

[0031] The crossbeam frame assembly 3 includes a beam 14 with one end vertically supported on the top of the column support 15. A guide rail 16 is attached to the bottom surface of the beam 14 near the other end. The column support 15 is slidably connected to the main guide rail 2 via a slider 17 at its bottom end. A travel motor 7 is mounted on the side wall of the column support 15 and its output end is connected to a travel gear 18. The travel gear 18 meshes with a rack 13 arranged along the main guide rail 2. The transmission system consisting of the rack 13 and the travel gear 18 converts rotational motion into linear motion, driving the crossbeam frame assembly 3 forward or backward depending on the direction of motion.

[0032] The clamping assembly 9 includes a clamp 30 with a locking key 29 at one end. The clamp 30 of the fixed clamping assembly 9 is fixed to the rear column 11 at one end of the binding machine bracket 1. The clamp 30 of the other clamping assembly 9 is mounted on the front column 10 of the movable frame assembly 4. The front column 10 is mounted on a bracket 19. One end of the bracket 19 is slidably connected to the main guide rail 2 via a slider 21, and the other end is vertically connected to a vertical support 20. The bottom end of the vertical support 20 is connected to a pulley 22 that contacts the binding machine bracket 1. The positions of the clamps 30 on one side of the two clamping assemblies 9 installed on the machine are adjustable, allowing for adjustment of the distance between the two clamps 30 as the workpiece length changes.

[0033] The binding tool assembly 6 includes a connecting seat 24, with a handle 5 connected to the connecting seat 24. One end of the connecting seat 24 is slidably connected to the guide rail 16 via a slider 23. The connecting seat 24 is equipped with two cable tie fixing seats 26, each with a cable tie tray 25. The two cable tie fixing seats 26 are mounted on the same slewing bearing 27. The workpiece 12 passes through the hollow center of the slewing bearing 27 and is fixed at both ends to the clamps 30 of the two-sided clamping assemblies 9. The connecting seat 24 also houses a binding motor 8, the output of which is connected to a drive wheel 28. The drive wheel 28 meshes with the toothed outer edge of the slewing bearing 27. Both the drive wheel 28 and the slewing bearing 27 are rotatably connected to the connecting seat 24. The binding motor 8, connected to the slewing bearing 27, provides rotation via the drive wheel 28. The handle 5 is designed so that the workpiece 12 to be bound has two bent corners on each side; to maintain the binding process, the operator needs to use the handle 5 to rotate the binding tool assembly 6.

[0034] A method for using a steel strapping machine for transformer cores includes the following steps:

[0035] S1: Adjust the crossbeam frame assembly 3 according to the starting position. The crossbeam frame assembly 3 should be located at the position where the steel tie straps need to be tied.

[0036] S2: Adjust the clamp assembly 9 according to the shape and length of the steel strap, place the workpiece 12 (steel strap) and tighten the clamps 30 at both ends;

[0037] S3: Manually install the cable ties onto the cable tie reel 25 and adjust their position on the workpiece 12;

[0038] S4: The operator (who needs to press the button) starts the strapping machine and begins the strapping process;

[0039] S5: The binding motor 8 starts to rotate and the binding tool assembly 6 attached to the binding strap begins to automatically bind the workpiece 12;

[0040] S6: The crossbeam frame assembly 3 is connected to the travel motor 7, which moves forward at a constant speed. During this process, the operator uses the handle 5 to make angular rotation.

[0041] The crossbeam frame assembly 3 is the most important component of this invention. Its design fulfills the purpose of this invention, is easy to operate, and conforms to ergonomic principles. Before the process begins, it needs to be adjusted to the starting point of the binding process. This can be easily accomplished by remotely controlling the operation of the crossbeam frame drive motor 7, which can move the crossbeam frame back and forth according to its position.

[0042] The main objective of this invention is to bundle steel strips. In the transformer core industry, the length of the steel strip varies depending on the size of the transformer core. This invention provides two clamping assemblies 9 at both ends: a front column 10 and a rear column 11. Because the steel strips have different lengths, the front column can move in the x-axis direction, making workpiece adjustment quick and convenient. For safety, the steel strip should be clamped and locked within the clamps to prevent accidents during the bundling process.

[0043] The purpose of this invention is to provide a method for binding steel straps. The binding tool assembly 6 is a component of this invention. The binding tool assembly 6 includes a cable tie fixing seat 26 and a motor drive assembly for the cable tie reel 25. The operator needs to secure the cable tie and adjust its position on the steel strap.

[0044] The function of the binding tool is to bind steel straps, and its main component is the binding motor 8. The slewing bearing 27 is connected to the binding motor 8 via the drive wheel 28, causing the strap holder base and strap fixing seat 26 to rotate, thus completing the binding task. Considering the safety factor of the process, the slewing bearing 27 is not directly driven by the motor. The workpiece 12 passes through the hollow center of the slewing bearing 27.

[0045] The frame base assembly crossbeam component 3 is a motor-driven structure that converts rotary motion into linear motion via a rack and pinion transmission system. The transmission system moves the frame back and forth on the guide rail according to the direction of motion. For mobility purposes, a handle 5 is also installed. Due to the constraints of the steel strip design, fully automating this invention would be costly. The aim of this invention is to improve the precision and quality of the steel strip while maintaining low cost. Therefore, the operator only needs to manually operate the machine, rotating the binding tool at the angle of the steel strip's bend.

[0046] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A steel strapping machine for transformer cores, characterized in that, The system includes a crossbeam frame assembly (3) driven by a walking motor (7) and connected to a main guide rail (2) on a binding machine bracket (1). A binding tool assembly (6) is slidably connected to the crossbeam frame assembly (3). The binding tool assembly (6) is connected to a handle (5). A clamp assembly (9) is provided on each side of the binding tool assembly (6). The workpiece (12) is fixed between the two clamp assemblies (9) and passes through the binding tool assembly (6). One clamp assembly (9) is fixed, and the other clamp assembly (9) is installed on a movable frame assembly (4). The crossbeam frame assembly (3) includes a beam (14) with one end vertically supported on the top of a column support (15). A guide rail (16) is attached to the bottom surface of the beam (14) near the other end. The column support (15) is slidably connected to the main guide rail (2) via a slider (17) at the bottom end. 2) On the upper part, the walking motor (7) is installed on the side wall of the column support (15) and the output end is connected to the walking gear (18). The walking gear (18) meshes with the rack (13) set along the main guide rail (2). The clamp assembly (9) includes a clamp (30) with a key (29) at the end. The clamp (30) of the fixed clamp assembly (9) is fixed on the rear column (11) at one end of the binding machine bracket (1). The clamp (30) of the other clamp assembly (9) is installed on the front column (10) of the movable frame assembly (4). The front column (10) is installed on the bracket (19). One end of the bracket (19) is slidably connected to the main guide rail (2) through the slider (21), and the other end is vertically connected to the vertical support (20). The bottom end of the vertical support (20) is connected to the pulley (22) and contacts the binding machine bracket (1).

2. The steel strapping machine for transformer cores as described in claim 1, characterized in that, The binding tool assembly (6) includes a connecting seat (24), a handle (5) connected to the connecting seat (24), one end of the connecting seat (24) is slidably connected to the guide rail (16) via a slider (23), the connecting seat (24) is equipped with two cable tie fixing seats (26), each cable tie fixing seat (26) is equipped with a cable tie tray (25), the two cable tie fixing seats (26) are installed on the same slewing bearing (27), the workpiece (12) passes through the hollow center of the slewing bearing (27) and both ends are fixed on the clamps (30) of the clamping assemblies (9) on both sides, the connecting seat (24) is also equipped with a binding motor (8), the output end of the binding motor (8) is connected to the drive wheel (28), the drive wheel (28) meshes with the toothed outer edge of the slewing bearing (27), the drive wheel (28) and the slewing bearing (27) are rotatably connected to the connecting seat (24).

3. The method of using the steel strap binding machine for transformer cores as described in claim 2, characterized in that, Includes the following steps: S1: Adjust the crossbeam frame assembly (3) according to the starting position. The crossbeam frame assembly (3) should be located at the position where the steel tie straps need to be tied. S2: Adjust the clamp assembly (9) according to the shape and length of the steel strap, place the workpiece (12), i.e., the steel strap, and tighten the clamps (30) at both ends; S3: Manually install the cable ties onto the cable tie reel (25) and adjust their position on the workpiece (12); S4: The operator starts the strapping machine and begins the strapping process; S5: The binding motor (8) starts to rotate the binding tool assembly (6) attached to the binding strap and starts to automatically bind the workpiece (12). S6: The crossbeam frame assembly (3) is connected to the travel motor (7), which moves forward at a constant speed. During this process, the operator uses the handle (5) to make angular turns.

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