Device for reducing operation noise of pure electric bending machine

Abstract

The utility model relates to the technical field of bending machines, in particular to a device for reducing operation noise of a pure electric bending machine. Comprising a bending machine body, a top plate, a transmission mechanism fixed to the bending machine body, a sliding block and a lead screw assembly, the transmission mechanism comprises a motor, a large synchronous belt wheel, a synchronous belt and a small synchronous belt wheel, the motor is fixed to the rear side of the bending machine body, and a motor shaft penetrates through the top plate and is connected with the small synchronous belt wheel; the small synchronous belt wheel is in transmission connection with the large synchronous belt wheel through the synchronous belt, and a plurality of vent holes are formed in the small synchronous belt wheel and the large synchronous belt wheel in the radial direction. The vent holes are used for reducing air extrusion among the large synchronous belt wheel, the small synchronous belt wheel and the synchronous belt, and the operation noise of the pure electric bending machine can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, and in particular to a device for reducing the operating noise of a pure electric bending machine. Background Art

[0002] As we all know, a press brake is a machine that can bend thin plates. However, during operation, a press brake generates noise. Excessive noise can affect the physical and mental health of the operator and negatively impact work efficiency. Noise can distract people, reduce work efficiency and accuracy, and pose a threat to environmental safety. Excessive noise can mask other important sounds, such as alarms or colleagues' calls, thereby increasing the probability of accidents. Summary of the Invention

[0003] The purpose of the utility model is to solve the problems existing in the prior art and to propose a device for reducing the operating noise of a pure electric bending machine, which can reduce the operating noise of the pure electric bending machine.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A device for reducing the operating noise of a pure electric bending machine is characterized in that it includes a bending machine body, a top plate, a transmission mechanism fixed to the body, a slider and a screw assembly, the transmission mechanism includes a motor, a large synchronous pulley, a synchronous belt and a small synchronous pulley, the motor is fixed to the rear side of the body, the motor shaft passes through the top plate and is connected to the small synchronous pulley, the small synchronous pulley is connected to the large synchronous pulley through the synchronous belt transmission, and the small synchronous pulley and the large synchronous pulley are provided with a plurality of ventilation holes in the radial direction.

[0006] Furthermore, the slider is in a U-shaped groove in the vertical direction, a connecting base is provided on the top of the U-shaped groove, a bearing seat is fixed above the connecting base, and the large synchronous pulley is rotatably connected to the bearing seat.

[0007] Furthermore, the screw assembly passes through the bearing seat and the connecting base and is connected to the synchronous large pulley. The other end of the screw assembly is connected to the fixed seat, and the fixed seat is fixedly connected to the bottom of the U-shaped groove of the slider.

[0008] Furthermore, the diameter of the vent hole is 1 mm, and the vent hole is used to reduce air squeezing between the large synchronous pulley, the small synchronous pulley and the synchronous belt.

[0009] Compared with the existing technology, the device for reducing the operating noise of a pure electric bending machine provided by the utility model has the following advantages:

[0010] 1. Simple structure, easy installation, and does not affect the structural function of the bending machine itself;

[0011] 2. Safe and efficient, the vent holes can effectively reduce the noise during the operation of the pure electric bending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the vent hole on the synchronous large pulley;

[0014] Figure 3 To improve the schematic diagram of the air compression direction of the front synchronous pulley and synchronous belt;

[0015] Figure 4 This is a schematic diagram of the improved synchronous pulley and synchronous belt air compression direction.

[0016] In the figure: 1. Press brake body, 2. Top plate, 3. Slider, 4. Screw assembly, 5. Large synchronous pulley, 6. Synchronous belt, 7. Small synchronous pulley, 8. Vent, 9. Connecting base, 10. Fixed base. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0019] Example 1, as Figure 1 、 Figure 2As shown, it includes a bending machine body 1, a top plate 2, a transmission mechanism fixed to the body, a slider 3 and a screw assembly 4, the transmission mechanism includes a motor, a large synchronous pulley 5, a synchronous belt 6 and a small synchronous pulley 7, the motor is fixed to the rear side of the body, the motor shaft passes through the top plate 2, and is connected to the small synchronous pulley 7, the small synchronous pulley 7 is connected to the large synchronous pulley 5 through the synchronous belt 6, the large synchronous pulley 5 is rotatably connected to the top of the slider 3, and the small synchronous pulley 7 and the large synchronous pulley 5 are provided with a plurality of vents 8 in the radial direction.

[0020] Through the setting of this scheme, when the motor drives the small synchronous pulley 7 to rotate, the synchronous belt 6 connected to the small synchronous pulley 7 will make the large synchronous pulley 5 rotate accordingly. During the rotation process, the small synchronous pulley 7 and the large synchronous pulley 5 are provided with a number of vents 8 in the radial direction to change the air circulation path, reduce the air squeeze between the small synchronous pulley 7, the large synchronous pulley 5 and the synchronous belt 6, thereby achieving the purpose of reducing the operating noise of the pure electric bending machine.

[0021] The motor is fixedly connected to the frame by bolts, and the synchronous pulley 7 is connected to the motor shaft by interference fit.

[0022] The slider 3 is in a U-shaped groove in the vertical direction, and a connecting base 9 is provided on the top of the U-shaped groove. A bearing seat is fixed above the connecting base 9, and the bearing seat is rotatably connected to the synchronous large pulley 5.

[0023] The screw assembly 4 is connected to the synchronous large pulley 5 after passing through the bearing seat and the connecting base 9. The screw assembly 4 is connected to the synchronous large pulley 5 through an interference fit. The other end of the screw assembly 4 is connected to the fixed seat 10, and the fixed seat 10 is fixedly connected to the bottom of the U-shaped groove on the slider 3.

[0024] The U-shaped groove in the slider 3 facilitates the installation of the connection base 9. The bottom of the U-shaped groove is fixedly connected to the fixing seat 10, and the slider 3 is driven up and down by the transmission of the screw assembly 4.

[0025] In order to ensure that the slider 3 slides more stably, a small slider is fixed on the back of the slider 3, and a guide rail is fixed on the front of the fuselage. The small slider and the guide rail are slidably connected, making the slider 3 run more stably and smoothly.

[0026] The diameter of the vent hole 8 is 1 mm. The vent hole 8 is used to reduce the air squeeze between the large synchronous pulley 5, the small synchronous pulley 7 and the synchronous belt 6, thereby reducing noise.

[0027] The following table shows the noise decibel reduction corresponding to the number of holes drilled in the synchronous large pulley 5 when the pure electric bending machine is running, taking the synchronous large pulley 5 as an example:

[0028] Motor power Speed Drilling diameter Cross-sectional width of synchronous large pulley Number of drilling holes Reduce noise 7.9kw 1900R / min 1mm 40 64 3-5 decibels 15kw 1900R / min 1mm 50 128 3-4 decibels 19kw 1900R / min 1mm 60 128 2-3 decibels 21kw 1900R / min 1mm 70 192 3-5 decibels

[0029] The working principle of this utility model is as follows: Figure 3 and Figure 4 As shown, the direction of the arrow indicates the direction of air compression. When the bending machine is working, the small synchronous pulley 7 and the large synchronous pulley 5 are in contact with the synchronous belt 6 and rotate respectively. The air squeezed in passes through the vent 8, which changes the air flow path and reduces the air between the small synchronous pulley 7, the large synchronous pulley 5 and the synchronous belt 6, thereby reducing noise.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for reducing the operating noise of a pure electric bending machine, characterized by: The invention comprises a bending machine body (1), a top plate (2) fixed on the body, a transmission mechanism, a slider (3) and a screw assembly (4), wherein the transmission mechanism comprises a motor, a synchronous large pulley (5), a synchronous belt (6) and a synchronous small pulley (7), wherein the motor is fixed on the rear side of the machine body, the motor shaft passes through the top plate (2) and is connected to the synchronous small pulley (7), the synchronous small pulley (7) is connected to the synchronous large pulley (5) through the synchronous belt (6), the synchronous large pulley (5) is rotatably connected to the top of the slider (3), and the synchronous small pulley (7) and the synchronous large pulley (5) are provided with a plurality of vent holes (8) in the radial direction.

2. The device for reducing the operating noise of a pure electric bending machine according to claim 1, characterized in that: The slider (3) is provided with a U-shaped groove in the vertical direction, a connecting base (9) is provided on the top of the U-shaped groove, a bearing seat is fixed above the connecting base (9), and the synchronous large pulley (5) is rotatably connected to the bearing seat.

3. The device for reducing the operating noise of a pure electric bending machine according to claim 1 is characterized in that: The screw assembly (4) passes through the bearing seat and the connecting base (9) and is connected to the synchronous large pulley (5). The other end of the screw assembly (4) is connected to the fixed seat (10), and the fixed seat (10) is fixedly connected to the bottom of the U-shaped groove of the slider (3).

4. The device for reducing the operating noise of a pure electric bending machine according to claim 1, characterized in that: The vent hole (8) has a diameter of 1 mm and is used to reduce air squeezing between the synchronous large pulley (5), the synchronous small pulley (7) and the synchronous belt (6).

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