Circle cutting device for sound equipment vibrating diaphragm

Abstract

The utility model discloses a circle cutting device for a sound equipment diaphragm. The circle cutting device comprises a rack, two groups of ultrasonic round cutting rollers are mounted on the rack, the two groups of ultrasonic round cutting rollers are rotationally mounted on the rack in an up-down symmetrical manner, and a plurality of groups of preset round cutting knives are arranged on the roller surfaces of the two groups of ultrasonic round cutting rollers; during cutting, the sound vibrating diaphragm passes through the middle of the two groups of ultrasonic round cutting rollers, and the sound vibrating diaphragm is divided into a plurality of groups of round diaphragms under the extrusion of a plurality of groups of preset round cutting knives on the roller surfaces of the two groups of ultrasonic round cutting rollers and the action of ultrasonic waves; according to the utility model, based on an ultrasonic cutting mode, a plurality of groups of circular cutting knives preset on the roller surfaces of the ultrasonic circular cutting rollers are utilized, so that the simultaneous circular cutting of a plurality of groups of vibrating diaphragms can be realized, and the circular cutting efficiency is effectively improved; the phenomenon that burrs and unevenness are easily generated on the edge of the sound equipment vibrating diaphragm in a rolling cutting method of a traditional cutter wheel can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sound production equipment, in particular to a circle cutting device for a sound diaphragm. Background Art

[0002] If we use car parts as an analogy, the magnet is the engine, the voice coil is equivalent to the drive shaft, and the diaphragm is the tire that drives the car forward. The reason why the speaker can make sound is that the current signal output by the amplifier interacts with the magnet, which in turn drives the voice coil in the magnetic field to do piston-like reciprocating motion. Since the diaphragm and the voice coil are glued together, the diaphragm vibrates back and forth and compresses the air to produce sound waves. From this, we can see that the sound we hear is completely derived from the movement mode of the diaphragm, and determines what the timbre and sound quality will be like, which is the so-called sound base. The diaphragm plays a vital role in the sound. Each diaphragm affects the various acoustic parameters of the unit to a certain extent, thus bringing different sound performances. The key is that the characteristics of each diaphragm have different effects on vibration quality, transients, distortion and frequency response. It is for this reason that each diaphragm will bring some typical differences in sound performance. If some improvements and improvements are made in the diaphragm production and manufacturing process, its acoustic characteristics can also be affected to a certain extent or even completely changed. The ideal diaphragm material needs to be as light as possible, with sufficient rigidity and suitable internal damping performance to suppress resonance.

[0003] The patent with authorization announcement number CN215433931U discloses a cutting device for producing acoustic diaphragms, which improves the stability of the equipment and the use effect of the equipment; it includes a first motor, a first mounting plate, a turntable, an acoustic diaphragm, two first auxiliary plates, a base, a side plate, a cross plate, multiple clamps and a cutting device, the output end of the first motor is equipped with a first mounting plate, the turntable is installed at the upper end of the first mounting plate, multiple clamps are installed on the turntable, multiple acoustic diaphragms are respectively installed on the multiple clamps, the first motor is installed between the two first auxiliary plates, the two first auxiliary plates are installed at the upper end of the base, the upper end of the base is equipped with side plates, the cross plate is installed on the side end of the side plate, the cutting device is installed on the cross plate, the clamp includes a lifting rod, a connecting plate, a pad and multiple springs, an opening is provided on the turntable, and the lifting rod can move up and down in the opening of the turntable. This patented technical solution uses a traditional cutter wheel to cut the speaker diaphragms, and uses the cutter wheel to cut the speaker diaphragms one by one, which has a slow cutting efficiency. At the same time, the rolling cutting method of the traditional cutter wheel is prone to cause burrs and unevenness on the edge of the speaker diaphragm, affecting the sound quality of subsequent speaker production products.

[0004] The patent with authorization announcement number CN218984981U discloses a cutting device for producing acoustic diaphragms, including a bottom shell, a top frame and a feed roller assembly, wherein a feed roller assembly is provided on one side of the bottom shell and a receiving roller assembly is provided on the other side, a top frame is provided on the top of the bottom shell, electric hydraulic cylinders are provided on both sides of the top of the top frame, guide rollers are provided on both sides of the bottom of the top frame, and an adsorption mesh plate is provided in the center of the top of the bottom shell. The utility model generates negative pressure wind force through a negative pressure air duct to adsorb the diaphragm raw material on the adsorption mesh plate, and divides the air guide cover into four cavities through a cross partition, each cavity is connected to a negative pressure air duct, so as to promote the uniform distribution of adsorption force in each cavity in the air guide cover, thereby ensuring the flatness of the adsorption diaphragm, and at the same time, the electric slide rail drives the slider to move left and right, thereby driving the scraper to scrape the diaphragm surface flat, further ensuring the flatness of the diaphragm adsorption. This patented technical solution uses a multi-cavity vacuum adsorption method to adsorb the audio diaphragm for cutting, which effectively ensures the flatness of the adsorbed diaphragm, is beneficial to the flatness of traditional knife wheel cutting, and to a certain extent improves the phenomenon that the traditional knife wheel rolling cutting method is prone to cause burrs and unevenness on the edge of the audio diaphragm. However, it has little effect on improving the cutting efficiency. Traditional knife wheel cutting requires cutting one by one in sequence, which is less efficient.

[0005] In view of this, we proposed a circle cutting device for sound diaphragms, which adopts ultrasonic circle cutting rollers to achieve circle cutting of multiple groups of diaphragms at the same time, effectively improving the efficiency of circle cutting. At the same time, the double ultrasonic circle cutting rollers are used in conjunction with the circle cutting knife to squeeze and cut up and down, which can avoid the phenomenon of burrs and unevenness on the edge of the sound diaphragm caused by the traditional rolling cutting method of the knife wheel.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0007] In order to solve the problems raised in the above-mentioned background technology, the utility model is based on the method of ultrasonic cutting, and utilizes multiple groups of circular cutting knives preset on the roller surface of the ultrasonic circular cutting roller, which can realize the simultaneous cutting of multiple groups of diaphragms, effectively improving the efficiency of circular cutting. At the same time, the method of double ultrasonic circular cutting rollers and the circular cutting knives for up and down extrusion cutting can avoid the phenomenon of burrs and unevenness on the edges of the audio diaphragms caused by the rolling cutting and cutting method of the traditional knife wheel.

[0008] In order to achieve the above purpose, the utility model proposes the following technical solutions:

[0009] A device for cutting a circle of an acoustic diaphragm, characterized in that it comprises a frame; two groups of ultrasonic circle cutting rollers are installed on the frame, the two groups of ultrasonic circle cutting rollers are used to cut a circle on the acoustic diaphragm, the two groups of ultrasonic circle cutting rollers are installed on the frame in an up-and-down symmetrical rotation manner, a number of groups of preset circular circle cutting knives are provided on the roller surfaces of the two groups of ultrasonic circle cutting rollers, the several groups of preset circular circle cutting knives are used to cut a circle on the acoustic diaphragm.

[0010] In the technical solution of the utility model, when the two groups of ultrasonic circle cutting rollers are cutting the sound diaphragm into a circle, the sound diaphragm passes through the middle of the two groups of ultrasonic circle cutting rollers, and under the squeezing of several groups of preset circular circle cutting knives on the roller surfaces of the two groups of ultrasonic circle cutting rollers and the action of ultrasonic waves, the sound diaphragm is divided into several groups of circular diaphragms.

[0011] Preferably, one end of the two groups of ultrasonic circle cutting rollers are rotatably connected to the frame, and the other ends of the two groups of ultrasonic circle cutting rollers are connected to an external motor drive shaft to be driven to rotate by the motor. At the same time, the two groups of ultrasonic circle cutting rollers are respectively connected to an external ultrasonic generator to realize ultrasonic cutting during the circle cutting process.

[0012] Preferably, a diaphragm unwinding roller and a diaphragm winding roller are also installed on the frame, and the diaphragm unwinding roller and the diaphragm winding roller are respectively rotatably installed at the two ends of the frame, and the diaphragm unwinding roller and the diaphragm winding roller are respectively used for unwinding the diaphragm roll group and winding up the tail material after cutting.

[0013] Preferably, a plurality of groups of driving rollers are also mounted on the frame, and the plurality of groups of driving rollers are used to drive the sound diaphragm to move. One end of the plurality of driving rollers is rotatably mounted on the frame, and the other end of the plurality of driving rollers is connected to an external motor driving shaft to be driven to rotate by the motor.

[0014] Preferably, the roller surfaces of the several groups of driving rollers are provided with a friction layer, the roller surfaces of the several groups of driving rollers are installed on the table surface of the frame, and the sound diaphragm is driven to move by the friction between the roller surfaces of the several groups of driving rollers and the table surface of the frame.

[0015] Preferably, a material storage groove is provided on one side of the two groups of ultrasonic circular cutting rollers, and the material storage groove is used to hold the cut sound diaphragm membrane. A groove door is provided at one end of the material storage groove, and the groove door is used to open and close to take out the membrane in the material storage groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a device for cutting circles of sound diaphragms. The device is based on ultrasonic cutting and utilizes a plurality of groups of circular cutting knives preset on the surface of an ultrasonic cutting roller to simultaneously cut circles of a plurality of diaphragms, thereby effectively improving the efficiency of cutting circles. At the same time, the device utilizes a dual ultrasonic cutting roller in cooperation with the cutting knives to squeeze and cut up and down, thereby avoiding the phenomenon of burrs and unevenness on the edge of the sound diaphragm caused by the rolling cutting method of a traditional knife wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the circular cutting device of the acoustic diaphragm of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of an ultrasonic circle cutting roller of a circle cutting device for an acoustic diaphragm according to the utility model;

[0020] Figure 3 The overall structure of the circular cutting device of the acoustic diaphragm of the utility model is shown in FIG. Figure 2 ;

[0021] In the figure: 100, frame; 110, ultrasonic circle cutting roller; 111, circular circle cutting knife; 120, unwinding roller; 130, winding roller; 140, driving roller; 150, material trough; 151, trough door. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, in the description of the present invention, “several” means two or more than two, unless otherwise clearly and specifically defined.

[0026] In order to solve the problems raised in the above-mentioned background technology, the embodiment of the utility model is based on the method of ultrasonic cutting, and utilizes multiple groups of circular cutting knives preset on the roller surface of the ultrasonic cutting roller, which can realize the simultaneous cutting of multiple groups of diaphragms, effectively improving the efficiency of cutting circles, and at the same time utilizes the method of double ultrasonic cutting rollers and the cutting knives to squeeze and cut up and down, which can avoid the phenomenon of burrs and unevenness on the edge of the sound diaphragm caused by the rolling cutting method of the traditional knife wheel.

[0027] like Figure 1 As shown, the embodiment of the utility model provides a sound diaphragm cutting device, including a frame 100; two sets of ultrasonic cutting rollers 110 are installed on the frame 100, such as Figure 2 As shown, two groups of ultrasonic circle cutting rollers 110 are mounted on the frame in a vertically symmetrical rotation manner, and a plurality of groups of preset circular circle cutting knives 111 are provided on the roller surfaces of the two groups of ultrasonic circle cutting rollers 110;

[0028] Specifically, two groups of ultrasonic circle cutting rollers 110 are used to cut circles of the sound diaphragm. The sound diaphragm passes through the middle of the two groups of ultrasonic circle cutting rollers 110. Under the squeezing of several groups of preset circular circle cutting knives 111 on the roller surfaces of the two groups of ultrasonic circle cutting rollers 110 and the action of ultrasonic waves, the sound diaphragm is divided into several groups of circular diaphragms.

[0029] Among them, one end of the two sets of ultrasonic circle cutting rollers 110 is rotatably connected to the frame 100, and the other end of the two sets of ultrasonic circle cutting rollers 110 is connected to the external motor drive shaft to be driven to rotate by the motor. At the same time, the two sets of ultrasonic circle cutting rollers 110 are respectively connected to the external ultrasonic generator.

[0030] Specifically, a diaphragm unwinding roller 120 and a diaphragm winding roller 130 are also installed on the frame 100 , and the diaphragm unwinding roller 120 and the diaphragm winding roller 130 are rotatably installed at two ends of the frame 100 , respectively.

[0031] A plurality of driving rollers 140 are mounted on the frame 100 , one end of the plurality of driving rollers 140 is rotatably mounted on the frame 100 , and the other end of the plurality of driving rollers 140 is connected to an external motor drive shaft to be driven to rotate by the motor.

[0032] Specifically, a friction layer is provided on the roller surface of the plurality of driving rollers 140 , and the roller surfaces of the plurality of driving rollers 140 are mounted on the table surface of the frame 100 . The sound diaphragm is driven to move by the friction between the roller surfaces of the plurality of driving rollers 140 and the table surface of the frame 100 .

[0033] In this embodiment, a material receiving groove 150 is formed on one side of the two sets of ultrasonic circle cutting rollers 110 , and a groove door 151 is formed at one end of the material receiving groove 150 .

[0034] Specific working principle: When the embodiment of the utility model is working, the sound diaphragm roll group to be cut is unwound to the driving roller 140 of the body 100 through the unwinding roller 120. Driven by the driving roller 140, the sound diaphragm passes through the middle of two groups of ultrasonic circle cutting rollers 110. Under the squeezing of several groups of preset circular circle cutting knives 111 on the roller surfaces of the two groups of ultrasonic circle cutting rollers 110 and the action of ultrasonic waves, the sound diaphragm is divided into several groups of circular diaphragm pieces, and several groups of circular diaphragm pieces fall into the material trough 150 and are collected. The cut sound diaphragm tailings are rolled up and recycled by the winding roller 130.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for cutting a circle of an acoustic diaphragm, characterized in that: comprising a frame (100); Two groups of ultrasonic circle cutting rollers (110) are installed on the frame (100), and the two groups of ultrasonic circle cutting rollers (110) are installed on the frame in a manner of vertically symmetrical rotation, and a plurality of groups of preset circular circle cutting knives (111) are provided on the roller surfaces of the two groups of ultrasonic circle cutting rollers (110); The two groups of ultrasonic circle cutting rollers (110) are used to circle the sound diaphragm. The sound diaphragm passes through the middle of the two groups of ultrasonic circle cutting rollers (110). Under the pressure of several groups of preset circular circle cutting knives (111) on the roller surfaces of the two groups of ultrasonic circle cutting rollers (110) and the action of ultrasonic waves, the sound diaphragm is divided into several groups of circular diaphragms.

2. The device for cutting a circle of an acoustic diaphragm according to claim 1, characterized in that: One end of the two groups of ultrasonic circle cutting rollers (110) is rotatably connected to the frame (100), and the other end of the two groups of ultrasonic circle cutting rollers (110) is connected to an external motor drive shaft to be driven to rotate by the motor. At the same time, the two groups of ultrasonic circle cutting rollers (110) are respectively connected to an external ultrasonic generator.

3. The device for cutting a circle of an acoustic diaphragm according to claim 1, characterized in that: A diaphragm unwinding roller (120) and a diaphragm winding roller (130) are also mounted on the frame (100); the diaphragm unwinding roller (120) and the diaphragm winding roller (130) are rotatably mounted on two ends of the frame (100) respectively.

4. The device for cutting a circle of an acoustic diaphragm according to claim 1, characterized in that: A plurality of groups of driving rollers (140) are also mounted on the frame (100), one end of the plurality of driving rollers (140) being rotatably mounted on the frame (100), and the other end of the plurality of driving rollers (140) being connected to an external motor drive shaft so as to be driven to rotate by the motor.

5. The device for cutting a circle of an acoustic diaphragm according to claim 4, characterized in that: The roller surfaces of the plurality of groups of driving rollers (140) are provided with friction layers, the roller surfaces of the plurality of groups of driving rollers (140) are mounted on the table surface of the frame (100), and the sound diaphragm is driven to move by the friction between the roller surfaces of the plurality of groups of driving rollers (140) and the table surface of the frame (100).

6. The device for cutting a circle of an acoustic diaphragm according to claim 1, characterized in that: A material containing groove (150) is provided on one side of the two groups of ultrasonic circular cutting rollers (110), and a groove door (151) is provided at one end of the material containing groove (150).

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