Tensioning-force-adjustable wire feeding mechanism for steel bar binding

Abstract

The utility model provides a wire feeding mechanism with adjustable tensioning force for steel bar binding, which comprises a wire feeding arm support, a wire guide disc assembly, a wire feeding assembly and a wire clamping resistance device, the wire guide disc assembly is arranged on the wire feeding arm support, the wire feeding assembly is arranged on the wire feeding arm support, the wire clamping resistance device is arranged on the wire feeding arm support, and the wire clamping resistance device is arranged on the wire feeding arm support. The wire clamping resistance device is located at the wire outlet end of the wire feeding assembly, and the wire guide disc assembly is located at the wire inlet end of the wire feeding assembly. According to the wire feeding mechanism with the adjustable tensioning force for steel bar binding, the wire clamping resistance device is additionally arranged in the wire feeding mechanism, resistance is applied to binding wires in the wire feeding process, enough tensioning force can be provided for the binding execution tail end, and the binding compactness is improved; on the other hand, the binding wire is in a tight state under the action of the wire clamping resistance device in the wire feeding process, so that loose winding of the binding wire is avoided, and the binding gun is more suitable for automatic binding of the binding gun.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar binding, and particularly relates to a wire feeding mechanism with adjustable tensioning force for steel bar binding. Background Art

[0002] During the steel bar binding process, a wire feeding mechanism is required to deliver the wire to the binding gun for binding. Traditional steel bars are mostly fed with wire in small coils, which have low working efficiency and require frequent replacement of wire feeding coils. At present, some wire feeding mechanisms are also used for wire feeding. However, when using a binding gun for binding during use, the delivered binding wire is prone to insufficient tension, and the binding wrapped around the steel bar by the binding gun is loose during binding. On the other hand, the binding wire lacks tension during the binding process, and is prone to entanglement and wire jumping in the wire feeding mechanism, causing equipment shutdown, affecting production efficiency, and even damaging the equipment in severe cases. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a large-coil wire feeding mechanism with adjustable tensioning force for steel bar binding. The wire clamping resistance device designed therein can adjust the tensioning force applied to the binding wire. On the one hand, it can provide sufficient tensioning force to the binding execution end, and on the other hand, it can prevent the binding wire from loosening. The wire guide reel assembly and the wire feeding assembly cooperate to realize the free switching of the wire feeding and wire feeding stop states.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a wire feeding mechanism with adjustable tensioning force for steel bar binding, comprising: a wire feeding arm, a wire guide disc assembly, a wire feeding assembly and a wire clamping resistance device, the wire guide disc assembly is installed on the wire feeding arm, the wire feeding assembly is arranged on the wire feeding arm, the wire clamping resistance device is arranged on the wire feeding arm, the wire clamping resistance device is located at the wire outlet end of the wire feeding assembly, and the wire guide disc assembly is located at the wire inlet end of the wire feeding assembly.

[0005] Wherein, the wire clamping resistance device includes a resistance mounting frame, a resistance bracket, an electromagnet driving device, a driving connecting rod, a resistance pressure plate and a resistance guide hole anvil, the resistance mounting frame is arranged on the wire feeding arm, the resistance bracket is fixed on the resistance mounting frame, the electromagnet driving device, the driving connecting rod, the resistance pressure plate and the resistance guide hole anvil are all arranged on the resistance bracket, the electromagnet driving device is connected to the resistance pressure plate through the driving connecting rod, and the end of the resistance pressure plate is located in the resistance guide hole anvil. The utility model is used for a wire feeding mechanism with adjustable tensioning force for steel bar binding. A wire clamping resistance device is added to the wire feeding mechanism, and resistance is applied to the binding wire during the wire feeding process, so that it can provide sufficient tension at the end of the binding execution, thereby improving the tightness of the binding; on the other hand, during the wire feeding process, the binding wire is in a tight state under the action of the wire clamping resistance device, which avoids loose winding of the binding wire and makes it more suitable for automatic binding of the binding gun.

[0006] Preferably, the driving connecting rod includes a resistance fork and a swing rod, one end of the resistance fork is hinged to the driving rod of the electromagnet driving device, and the other end is connected to the swing rod, and the swing rod is perpendicular to the resistance fork, the resistance fork can drive the swing rod to rotate, the bottom of the swing rod is connected to the resistance pressure plate, and the end of the resistance pressure plate is a smooth cylindrical surface. The electromagnet driving device can drive the resistance fork to rotate by telescoping, thereby driving the swing rod to rotate, and the swing rod drives the resistance pressure plate to change the feeding amount of its cylindrical surface on the resistance guide hole anvil, thereby adjusting the resistance applied to the binding wire.

[0007] Furthermore, the wire guide disc assembly includes a wire guide disc mounting frame, a wire guide disc and a wire guide disc brake mechanism, the wire guide disc mounting frame is mounted on the wire feeding arm frame, the wire guide disc is rotatably arranged in the middle of the wire guide disc mounting frame through a rotating shaft, and the wire guide disc brake mechanism is arranged on the wire guide disc mounting frame.

[0008] Specifically, the wire guide disc brake mechanism includes a brake sprocket, a brake electromagnet driving device, and a brake lever. The brake sprocket is coaxially arranged at the bottom of the wire guide disc, the brake lever is connected to the brake electromagnet driving device, the brake lever can be engaged with the brake sprocket, and the brake electromagnet driving device is arranged on the wire guide disc mounting frame. When the front end does not need to supply wire or fails, the brake electromagnet driving device drives the brake lever to engage with the brake sprocket to complete the locking of the wire guide disc.

[0009] Furthermore, the wire feeding assembly includes a wire feeding mounting frame, a wire feeding motor and a wire feeding guide assembly. The wire feeding mounting frame is mounted on a wire feeding arm, the wire feeding motor is fixed on the wire feeding mounting frame, and the wire feeding guide assembly is connected to the wire feeding motor.

[0010] Preferably, the wire feeding guide assembly comprises a guide housing, a group of guide driving wheels, a group of clamping wheels and a guide tube, the guide driving wheels are rotatably mounted in the guide housing, the wire feeding motor is connected to the guide driving wheels through gears, the clamping wheels are in contact with the guide driving wheels, and a guide tube is arranged between the guide driving wheels. The guide driving wheels cooperate with the clamping wheels to pull and guide the binding wire.

[0011] Furthermore, the clamping light wheel is rotatably installed in the housing, one end of the housing is hinged to the guide housing and a torsion spring is arranged between the two, and the other end of the housing is connected to the guide housing through a buckle; the cylindrical surface of the guide drive wheel is provided with a plurality of wire guide grooves. When the buckle is released, the housing and the clamping light wheel are lifted upward under the action of the torsion spring, which is convenient for troubleshooting the internal fault of the wire feeding guide assembly.

[0012] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0013] 1. The utility model adds a wire feeding mechanism with adjustable tensioning force for steel bar binding, and a wire clamping resistance device is added to the wire feeding mechanism, which applies resistance to the binding wire during the wire feeding process, so that it can provide sufficient tensioning force at the end of the binding execution, thereby improving the tightness of the binding; on the other hand, during the wire feeding process, the binding wire is in a taut state under the action of the wire clamping resistance device, which avoids the loose winding of the binding wire and makes it more suitable for automatic binding with a binding gun; at the same time, the above-mentioned tensioning force is adjustable, and the user can choose according to the actual situation.

[0014] 2. The wire feeding guide assembly in the utility model is designed with a guide drive wheel with a wire guide groove, a clamping wheel that cooperates with the guide drive wheel to clamp, and a wire guide tube, which can achieve the benign transportation of the binding wire and avoid wire entanglement and wire jumping. At the same time, the buckle design of the clamping wheel and the guide shell can effectively eliminate internal faults of the wire feeding guide assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a wire feeding mechanism with adjustable tensioning force for steel bar binding according to the utility model;

[0016] Figure 2 It is a structural schematic diagram of the wire clamping resistance device in the utility model;

[0017] Figure 3 for Figure 2 Left view of;

[0018] Figure 4 This is a schematic diagram of the structure of the wire guide disc assembly in the utility model;

[0019] Figure 5 This is a structural schematic diagram of the guide assembly of the central conveyor of the utility model;

[0020] Figure 6 It is a cross-sectional view of the guide assembly of the conveyor in the utility model.

[0021] In the figure: 1-wire feeding arm, 2-wire guide disc assembly, 21-wire guide disc mounting frame, 22-wire guide disc, 23-wire guide disc brake mechanism, 231-brake gear disc, 232-brake electromagnet drive device, 233-brake lever, 3-wire feeding assembly, 31-wire feeding mounting frame, 32-wire feeding motor, 33-wire feeding guide assembly, 331-guide shell, 332-guide drive wheel, 333-pressure light wheel, 334-guide tube, 3331-shell, 3332-torsion spring, 4-wire clamping resistance device, 41-resistance mounting frame, 42-resistance bracket, 43-electromagnet drive device, 44-driving connecting rod, 441-resistance fork, 442-rocker, 45-resistance pressure plate, 46-guide hole anvil. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention. Example

[0023] In one embodiment, Figure 1 As shown: a wire feeding mechanism with adjustable tensioning force for steel bar binding, comprising: a wire feeding arm 1, a wire guide disc assembly 2, a wire feeding assembly 3 and a wire clamping resistance device 4, the wire guide disc assembly 2 is installed on the wire feeding arm 1, the wire feeding assembly 3 is arranged on the wire feeding arm 1, the wire clamping resistance device 4 is arranged on the wire feeding arm 1, the wire clamping resistance device 4 is located at the wire outlet end of the wire feeding assembly 3, and the wire guide disc assembly 2 is located at the wire inlet end of the wire feeding assembly 3.

[0024] like Figure 2 , Figure 3 As shown, the wire clamping resistance device 4 includes a resistance mounting frame 41, a resistance bracket 42, an electromagnet driving device 43, a driving connecting rod 44, a resistance pressure plate 45 and a resistance guide hole anvil 46. The resistance mounting frame 41 is arranged on the wire feeding arm 1, and the resistance bracket 42 is fixed on the resistance mounting frame 41. The electromagnet driving device 43, the driving connecting rod 44, the resistance pressure plate 45 and the resistance guide hole anvil 46 are all arranged on the resistance bracket 42. The electromagnet driving device 43 is connected to the resistance pressure plate 45 through the driving connecting rod 44, and the end of the resistance pressure plate 45 is located in the resistance guide hole anvil 46.

[0025] The driving connecting rod 44 includes a resistance fork 441 and a rocker rod 442. One end of the resistance fork 441 is hinged to the driving rod of the electromagnet driving device 43, and the other end is connected to the rocker rod 442. The rocker rod 442 is perpendicular to the resistance fork 441. The resistance fork 441 can drive the rocker rod 442 to rotate. The bottom of the rocker rod 442 is connected to the resistance pressure plate 45, and the end of the resistance pressure plate 45 is a smooth cylindrical surface.

[0026] like Figure 4 As shown, the wire guide disc assembly 2 includes a wire guide disc mounting frame 21, a wire guide disc 22 and a wire guide disc brake mechanism 23. The wire guide disc mounting frame 21 is arranged on the wire feeding arm frame 1, the wire guide disc 22 is rotatably arranged in the middle of the wire guide disc mounting frame 21 through a rotating shaft, and the wire guide disc brake mechanism 23 is arranged on the wire guide disc mounting frame 21.

[0027] The wire guide disc brake mechanism 23 includes a brake sprocket 231, a brake electromagnet driving device 232, and a brake lever 233. The brake sprocket 231 is coaxially arranged at the bottom of the wire guide disc 22, and the brake lever 233 is connected to the brake electromagnet driving device 232. The brake lever 233 can be engaged with the brake sprocket 231, and the brake electromagnet driving device 232 is arranged on the wire guide disc mounting frame 21.

[0028] like Figure 5 As shown, the wire feeding assembly 3 includes a wire feeding mounting frame 31, a wire feeding motor 32 and a wire feeding guide assembly 33. The wire feeding mounting frame 31 is arranged on the wire feeding arm 1, the wire feeding motor 32 is fixed on the wire feeding mounting frame 31, and the wire feeding guide assembly 33 is connected to the wire feeding motor 32.

[0029] A further optimized solution is that the wire feeding guide assembly 33 includes a guide shell 331, a group of guide drive wheels 332, a group of clamping light wheels 333 and a guide tube 334. The guide drive wheel 332 is rotatably installed in the guide shell 331, the wire feeding motor 32 is connected to the guide drive wheel 332 through a gear, the clamping light wheel 333 is in contact with the guide drive wheel 332, and a guide tube 334 is arranged between the guide drive wheels 332.

[0030] In addition, the clamping light wheel 333 is rotatably installed in the shell 3331, one end of the shell 3331 is hinged to the guide shell 331 and a torsion spring 3332 is arranged between the two, and the other end of the shell 3331 is connected to the guide shell 331 through a buckle; the cylindrical surface of the guide drive wheel 332 is provided with a plurality of wire guide grooves.

[0031] The above embodiment discloses a wire feeding mechanism with adjustable tensioning force for steel bar binding, and its working principle is as follows:

[0032] The binding wire is wound around the wire guide disc 22, one end of which passes through the wire feeding guide assembly 3 and is wound around the guide drive wheel 332, and then passes through the guide hole anvil plate 46 in the wire clamping resistance device 4 and contacts the resistance pressure plate 45, and finally is sent to the binding gun. Before or during work, the operator can adjust the wire clamping resistance device 4 according to the on-site conditions, turn on the electromagnet drive device 43 to drive the connecting rod 44 to make the resistance pressure plate 45 close to the binding wire, increase the resistance between the electromagnet drive device 43 and the resistance pressure plate 45, and then the tension of the binding gun is greater, otherwise the tension of the binding gun can be reduced; when it is necessary to pause the wire feeding, the brake electromagnet drive device 232 drives the brake lever 233 to rotate to facilitate the engagement of the brake gear disc 231, thereby locking the wire guide disc 22.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A wire feeding mechanism with adjustable tensioning force for steel bar binding, characterized in that: include: A wire feeding arm (1), a wire guide disc assembly (2), a wire feeding assembly (3) and a wire clamping resistance device (4), wherein the wire guide disc assembly (2) is mounted on the wire feeding arm (1), the wire feeding assembly (3) is arranged on the wire feeding arm (1), the wire clamping resistance device (4) is arranged on the wire feeding arm (1), the wire clamping resistance device (4) is located at the wire outlet end of the wire feeding assembly (3), and the wire guide disc assembly (2) is located at the wire inlet end of the wire feeding assembly (3).

2. A wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 1, characterized in that: The wire clamping resistance device (4) comprises a resistance mounting frame (41), a resistance bracket (42), an electromagnet driving device (43), a driving connecting rod (44), a resistance pressing plate (45) and a resistance guide hole anvil (46); the resistance mounting frame (41) is arranged on the wire feeding arm frame (1); the resistance bracket (42) is fixed on the resistance mounting frame (41); the electromagnet driving device (43), the driving connecting rod (44), the resistance pressing plate (45) and the resistance guide hole anvil (46) are all arranged on the resistance bracket (42); the electromagnet driving device (43) is connected to the resistance pressing plate (45) via the driving connecting rod (44); and the end of the resistance pressing plate (45) is located inside the resistance guide hole anvil (46).

3. A wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 2, characterized in that: The driving connecting rod (44) comprises a resistance fork (441) and a swing rod (442); one end of the resistance fork (441) is hinged to the driving rod of the electromagnet driving device (43); the other end is connected to the swing rod (442); the swing rod (442) is perpendicular to the resistance fork (441); the resistance fork (441) can drive the swing rod (442) to rotate; the bottom of the swing rod (442) is connected to the resistance pressure plate (45); the end of the resistance pressure plate (45) is a smooth cylindrical surface.

4. The wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 1, characterized in that: The wire guide disc assembly (2) comprises a wire guide disc mounting frame (21), a wire guide disc (22) and a wire guide disc brake mechanism (23); the wire guide disc mounting frame (21) is arranged on a wire feeding arm frame (1); the wire guide disc (22) is rotatably arranged in the middle of the wire guide disc mounting frame (21) via a rotating shaft; and the wire guide disc brake mechanism (23) is arranged on the wire guide disc mounting frame (21).

5. A wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 4, characterized in that: The wire guide disc brake mechanism (23) comprises a brake sprocket (231), a brake electromagnet drive device (232), and a brake lever (233); the brake sprocket (231) is coaxially arranged at the bottom of the wire guide disc (22); the brake lever (233) is connected to the brake electromagnet drive device (232); the brake lever (233) can be engaged with the brake sprocket (231); and the brake electromagnet drive device (232) is arranged on the wire guide disc mounting frame (21).

6. The wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 1, characterized in that: The wire feeding assembly (3) comprises a wire feeding mounting frame (31), a wire feeding motor (32) and a wire feeding guide assembly (33); the wire feeding mounting frame (31) is arranged on the wire feeding arm frame (1); the wire feeding motor (32) is fixedly arranged on the wire feeding mounting frame (31); and the wire feeding guide assembly (33) is connected to the wire feeding motor (32).

7. A wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 6, characterized in that: The wire feeding guide assembly (33) comprises a guide housing (331), a group of guide drive wheels (332), a group of clamping wheels (333) and a guide tube (334); the guide drive wheels (332) are rotatably mounted in the guide housing (331); the wire feeding motor (32) is connected to the guide drive wheels (332) via gears; the clamping wheels (333) are in contact with the guide drive wheels (332); and a guide tube (334) is arranged between the group of guide drive wheels (332).

8. The wire feeding mechanism with adjustable tensioning force for steel bar binding according to claim 7, characterized in that: The pressing light wheel (333) is rotatably mounted in a housing (3331); one end of the housing (3331) is hinged to the guide housing (331) and a torsion spring (3332) is arranged between the two; the other end of the housing (3331) is connected to the guide housing (331) via a buckle; and a plurality of wire guide grooves are arranged on the cylindrical surface of the guide drive wheel (332).

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