Binding machine for enhancing heat dissipation performance of wire winding motor

Abstract

The utility model relates to the technical field of strapping machines, and particularly discloses a strapping machine capable of enhancing the heat dissipation performance of a wire winding motor. Comprising a machine shell and a wire winding mechanism arranged in the machine shell, the wire winding mechanism comprises a wire winding motor stator, a wire winding motor rotor and a speed reducer, a metal support is arranged in the machine shell and provided with a connecting part and an open part, and the wire winding motor rotor is connected with the connecting part of the metal support through a bearing. The wire winding motor stator is fixed to the connecting portion of the metal support and exposed out of the open portion, and the axis of the wire winding motor stator coincides with the axis of the wire winding motor rotor. The wire winding motor stator and the wire winding motor rotor are assembled and connected through the connecting part of the metal bracket, so that the concentricity of the wire winding motor stator and the wire winding motor rotor is ensured, and the wire winding motor stator and the wire winding motor rotor are not influenced by thermal deformation of a strapping machine shell; a series of problems of motor abrasion, noise generation, heating, damage, high energy consumption and the like caused by non-concentricity of the stator and the rotor of the wire winding motor are avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of strapping machines, and specifically discloses a strapping machine that enhances the heat dissipation performance of a wire winding motor. Background Technology

[0002] A binding machine is a widely used tool in the construction industry, primarily used to bind steel bars with wire. Workers use this handheld device, and its mechanized operation significantly improves binding efficiency and quality while reducing manual labor intensity. The use of binding machines not only increases construction speed but also ensures the uniformity and strength of the bindings, which is crucial for guaranteeing the stability and safety of building structures.

[0003] Existing bundling machines typically consist of multiple units, including a feeding unit, a coiling and guiding unit, a bundling unit, and a cutting unit, which work together to complete multiple steps such as feeding, guiding, coiling, gripping, cutting, twisting, and releasing the wire. In the bundling unit, a motor and reducer work together to drive the gripping part used to hold the wire to rotate, thus tightening both ends of the wire and achieving bundling of the object. This process involves precise mechanical motion control and force transmission, ensuring the reliability and efficiency of the bundling.

[0004] While existing strapping machines have played a significant role in improving work efficiency, some shortcomings remain. Traditional strapping machines typically employ a motor structure with a housing, which is bulky, has poor heat dissipation, and results in lower motor power for the same volume, leading to higher costs. To address this, many existing strapping machine winding motors use housingless motors. These motors rely on a bracket structure within the product casing as the motor's support structure. While simple and low-cost, under heavy workloads, the motor generates significant heat, which can cause deformation of the plastic casing, affecting the concentricity of the motor stator and rotor. This, in turn, affects the concentricity of the winding motor rotor and the reducer, resulting in a series of problems such as noise, motor wear, overheating, damage, and high energy consumption. These issues not only reduce the lifespan of the strapping machine but also affect construction safety and efficiency. Therefore, developing a strapping machine with a more optimized structure and more stable performance is of significant practical importance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a binding machine that enhances the heat dissipation performance of the wire winding motor.

[0006] This utility model discloses a binding machine that enhances the heat dissipation performance of a wire-wound motor, employing the following technical solution:

[0007] A binding machine for enhancing the heat dissipation performance of a wire-winding motor includes: a housing and a wire-winding mechanism disposed within the housing. The wire-winding mechanism includes a wire-winding motor stator, a wire-winding motor rotor, and a reducer. A metal bracket is provided inside the housing. The metal bracket has a connecting portion and an open portion. The connecting portion of the wire-winding motor rotor and the metal bracket is connected by a bearing. The connecting portion of the wire-winding motor stator and the metal bracket is fixed and exposed from the open portion. The axes of the wire-winding motor stator and the wire-winding motor rotor coincide.

[0008] Preferably, the reducer is fixed to the metal bracket, and the reducer coincides with the axis of the stator and rotor of the wire winding motor.

[0009] Preferably, one end of the metal bracket is provided with a snap-fit ​​block, which engages with the reducer.

[0010] Preferably, the metal bracket has a connecting lug on its connecting part, and the connecting lug is provided with a screw to connect and fix it to the reducer.

[0011] Preferably, the connecting portion includes a first connecting beam and a second connecting beam, as well as a front connecting seat and a rear connecting seat connecting the first connecting beam and the second connecting beam, and the space between the first connecting beam, the second connecting beam, the front connecting seat and the rear connecting seat is the open portion.

[0012] Preferably, the first connecting beam and the second connecting beam are of equal width, and the ratio of the diameter of the first connecting beam to the diameter of the stator of the winding motor is (0.15~0.7):1.

[0013] Preferably, the first connecting beam and the second connecting beam are respectively provided with slots, and the stator of the winding motor is provided with a locking block on its outer periphery that engages with the slots of the first connecting beam and the slots of the second connecting beam respectively.

[0014] Preferably, the housing is provided with reinforcing ribs that abut against the periphery of the metal bracket connection.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] This invention utilizes the connecting part of a metal bracket to assemble and connect the stator and rotor of the wire winding motor, ensuring the concentricity of the stator and rotor. This prevents the wire winding motor from being affected by thermal deformation of the strapping machine casing, thus avoiding a series of problems such as motor wear, noise, heat generation, damage, and high energy consumption caused by misalignment between the stator and rotor. Furthermore, since the stator of the wire winding motor can be exposed through the open part of the metal bracket, the heat dissipation performance of the wire winding motor is also ensured, effectively reducing the energy consumption of the strapping machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the binding machine for enhancing the heat dissipation performance of the wire-wound motor according to this utility model;

[0018] Figure 2 This is a schematic diagram of the wire winding mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the metal support structure of the wire winding mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly of the metal bracket of the winding mechanism, the winding motor, and the reducer of this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Housing; 2. Stator of winding motor; 3. Rotor of winding motor; 4. Reducer; 41. Annular groove; 5. Metal bracket; 51. First connecting beam; 52. Second connecting beam; 53. Front connecting seat; 54. Rear connecting seat; 55. Slot; 56. Connecting ear; 57. Snap-fit ​​block. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] A binding machine for enhancing the heat dissipation performance of wire-wound motors, as described in reference. Figure 1-2 It includes a housing 1 and a winding mechanism disposed within the housing 1. The winding mechanism includes a winding motor, including a winding motor stator 2 and a winding motor rotor 3. A metal bracket 5 is provided inside the housing 1, and the metal bracket 5 has a connecting part and an open part. The winding motor rotor 3 is connected to the metal bracket 5 through a bearing, the winding motor stator 2 is fixed to the metal bracket 5 through the connecting part and protrudes from the open part, and the axes of the winding motor stator 2 and the winding motor rotor 3 coincide.

[0025] Traditional strapping machines have a molded cavity on the inner wall of the casing 1 to fix the stator 2 of the wire-winding motor. The rotor 3 of the wire-winding motor is indirectly assembled into the casing 1 through components on its output shaft. The stator 2 and rotor 3 are indirectly connected through the casing 1, resulting in poor connection stability. This solution, however, uses a metal bracket 5 to assemble the stator 2 and rotor 3 together, ensuring coaxiality between the stator and rotor. Even if the casing 1 deforms due to heat, their concentricity remains unaffected. This design avoids problems such as motor wear, noise, overheating, damage, and high energy consumption caused by misalignment of the stator and rotor. Reinforcing ribs can be provided inside the casing 1 to press against the periphery of the metal bracket 5's connection, further improving the overall assembly stability of the metal bracket 5 and the wire-winding mechanism. Simultaneously, since the stator 2 can be exposed through the open portion of the metal bracket 5, heat dissipation of the wire-winding motor is ensured, effectively reducing the energy consumption of the strapping machine.

[0026] In this embodiment, refer to Figure 3 The connecting part includes a first connecting beam 51 and a second connecting beam 52, as well as a front connecting seat 53 and a rear connecting seat 54 connecting the first connecting beam 51 and the second connecting beam 52. The space between the first connecting beam 51, the second connecting beam 52, the front connecting seat 53, and the rear connecting seat 54 is an open part. The winding motor rotor 3 is connected to the front connecting seat 53 and the rear connecting seat 54 of the metal bracket 5 by bearings, and the winding motor stator 2 is fixed to the first connecting beam 51 and the second connecting beam 52 of the metal bracket 5. Specifically, the first connecting beam 51 and the second connecting beam 52 are respectively provided with a slot 55, and the outer periphery of the winding motor stator 2 is provided with a locking block that engages with the slot 55 of the first connecting beam 51 and the slot 55 of the second connecting beam 52, thereby achieving the purpose of fixing the winding motor stator 2 to the metal bracket 5. Of course, other fixing methods besides locking can also be used. As a preferred option, the first connecting beam 51 and the second connecting beam 52 are of the same width, and the ratio of the diameter of the first connecting beam 51 to the diameter of the winding motor stator 2 is (0.15~0.7):1. This design can maximize the balance between the heat dissipation of the motor and the connection stability.

[0027] As a further preferred embodiment, the winding mechanism also includes a reducer 4, which is also fixed to the metal bracket 5. Specifically, refer to... Figure 4 The front connecting seat 53 of the metal bracket 5 has connecting ears 56 on both sides. Screws are installed on the connecting ears 56 to connect and fix them to the reducer 4, ensuring that the reducer 4 coincides with the axis of the winding motor stator 2 and the winding motor rotor 3, thereby improving the operational reliability of the binding machine's winding mechanism. Furthermore, the end of the front connecting seat 53 of the metal bracket 5 has a locking block 57, which engages with the annular groove 41 of the reducer 4, serving to position and assemble the components and improve connection stability.

[0028] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A binding machine for enhancing the heat dissipation performance of a wire-winding motor, comprising a housing and a wire-winding mechanism disposed within the housing, the wire-winding mechanism comprising a wire-winding motor stator, a wire-winding motor rotor, and a reducer, characterized in that, The housing is provided with a metal bracket, which has a connecting part and an open part. The connecting part of the winding motor rotor and the metal bracket is connected by a bearing. The connecting part of the winding motor stator is fixed to the connecting part of the metal bracket and protrudes from the open part. The axis of the winding motor stator and the winding motor rotor coincide.

2. The binding machine for enhancing the heat dissipation performance of the wire-winding motor according to claim 1, characterized in that, The reducer is fixed to the metal bracket, and the reducer coincides with the axis of the stator and rotor of the wire winding motor.

3. The binding machine for enhancing the heat dissipation performance of the wire-winding motor according to claim 2, characterized in that, One end of the metal bracket is provided with a snap-fit ​​block, which engages with the reducer.

4. The binding machine for enhancing the heat dissipation performance of the wire-winding motor according to claim 2, characterized in that, The metal bracket has a connecting lug on its connecting part, and the connecting lug is provided with a screw to connect and fix it to the reducer.

5. The binding machine for enhancing the heat dissipation performance of the wire-wound motor according to claim 1, characterized in that, The connecting portion includes a first connecting beam and a second connecting beam, as well as a front connecting seat and a rear connecting seat connecting the first connecting beam and the second connecting beam, and the space between the first connecting beam, the second connecting beam, the front connecting seat and the rear connecting seat is the open portion.

6. The binding machine for enhancing the heat dissipation performance of the wire-winding motor according to claim 5, characterized in that, The first connecting beam and the second connecting beam are of the same width, and the ratio of the diameter of the first connecting beam to the diameter of the stator of the winding motor is (0.15~0.7):

1.

7. The binding machine for enhancing the heat dissipation performance of the wire-wound motor according to claim 5, characterized in that, The first connecting beam and the second connecting beam are respectively provided with slots, and the stator of the winding motor is provided with a locking block on its outer periphery that engages with the slots of the first connecting beam and the slots of the second connecting beam.

8. The binding machine for enhancing the heat dissipation performance of the wire-wound motor according to claim 1, characterized in that, The housing is provided with reinforcing ribs that abut against the periphery of the metal bracket connection.

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