CN217346769U - High-rigidity high-speed welding device - Google Patents
High-rigidity high-speed welding device Download PDFInfo
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- CN217346769U CN217346769U CN202221191080.XU CN202221191080U CN217346769U CN 217346769 U CN217346769 U CN 217346769U CN 202221191080 U CN202221191080 U CN 202221191080U CN 217346769 U CN217346769 U CN 217346769U
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Abstract
The utility model discloses a high-rigidity high-speed welding device, which comprises a supporting seat, wherein a hollow shaft is rotationally connected in the supporting seat, and an ultrasonic welding mechanism is arranged in the hollow shaft; ultrasonic welding mechanism includes the ultrasonic vibration wheel, the ultrasonic vibration wheel passes through flange fixed connection in the one end of hollow shaft, the one end fixedly connected with end cover of ultrasonic vibration wheel is kept away from to the hollow shaft, amplitude adjusting part and transducing piece have set gradually in the hollow shaft, install electrically conductive sliding ring on the end cover, electrically conductive sliding ring and transducing piece electric connection, electrically conductive sliding ring electric connection has supersonic generator, supersonic generator sets up outside the hollow shaft, amplitude adjusting part and the radial rigid contact of hollow shaft inner wall, install the rotatory driving piece of drive hollow shaft on the outer wall of ultrasonic vibration wheel one end is kept away from to the hollow shaft. The utility model takes the ultrasonic vibration wheel as the rotatable ultrasonic welding head, so that the prior sliding friction is changed into rolling friction, and the welding speed is improved; the double-flange supporting structure improves the system rigidity and ensures the continuous welding quality.
Description
Technical Field
The utility model relates to an ultrasonic welding technical field especially relates to high-speed welding set of high rigidity.
Background
When ultrasonic wave acts on the contact surface of the thermoplastic material, after high-frequency vibration reaches certain amplitude, local high temperature can be generated due to large acoustic resistance at a welding area, so that the contact surface of the two materials is rapidly melted, and after certain pressure is applied, the two materials are fused into a whole. Ultrasonic welding is common for plastic welding such as automobile decoration, product packaging and the like, and for non-woven fabric welding such as masks, diapers, feminine sanitary napkins and the like. In recent years, the requirements in the field of non-woven fabric welding are more and more concrete and urgent, and the requirements on welding quality, welding speed and welding width are simultaneously met.
A conventional nonwoven welding station consists of a conventional axially oscillating ultrasonic weld head and a patterned rotatable bottom wheel. The ultrasonic welding head is fixed, and the bottom wheel rotates. There is a small gap between the welding head and the circumference of the bottom wheel, and the non-woven fabric passes through the gap to complete welding. Because the ultrasonic welding head is fixed, the non-woven fabric and the welding head are always in a sliding friction state, so that not only are the products easily wrinkled and the welding speed limited, but also when the material thickness is uneven, the sliding contact is more easily caused by the problem of welding quality. The quality of ultrasonic welding is related to the ultrasonic amplitude, pressure and welding time, and during high-speed welding, the ultrasonic horn operates at maximum amplitude, and the welding pressure must be increased when the welding time is shortened. The impact force during welding is particularly likely to cause damage to the transducer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-speed welding set of high rigidity to solve the problem that above-mentioned prior art exists.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a high rigidity high speed welding device, which comprises a supporting seat, wherein a hollow shaft is rotationally connected in the supporting seat, an ultrasonic welding mechanism is arranged in the hollow shaft, and the supporting seat, the hollow shaft and the ultrasonic welding mechanism are coaxially arranged;
ultrasonic welding mechanism includes the ultrasonic vibration wheel, the ultrasonic vibration wheel passes through flange fixed connection and is in the one end of hollow shaft, the hollow shaft is kept away from the one end fixedly connected with end cover of ultrasonic vibration wheel, amplitude regulating part and transducing piece have set gradually in the hollow shaft, the ultrasonic vibration wheel with the amplitude regulating part with the coaxial rigid coupling of transducing piece, install conductive sliding ring on the end cover, conductive sliding ring with transducing piece electric connection, conductive sliding ring electric connection has supersonic generator, supersonic generator sets up outside the hollow shaft, the amplitude regulating part with the hollow shaft inner wall passes through the radial rigid contact of flange, the hollow shaft is kept away from install the drive on the outer wall of ultrasonic vibration wheel one end the rotatory driving piece of hollow shaft.
Preferably, the amplitude adjusting part comprises an amplitude modulator, the supporting flange is led out from a node of the amplitude modulator, the energy conversion part is fixedly connected with one end, far away from the ultrasonic vibration wheel, of the amplitude modulator, and the amplitude modulator is fixedly connected with the ultrasonic vibration wheel.
Preferably, the transducer comprises a transducer, the transducer is fixedly connected with the amplitude modulator, and the conductive slip ring is electrically connected with the transducer.
Preferably, the ultrasonic vibration wheel and the amplitude modulator and the transducer are coaxially and fixedly connected through a double-end stud.
Preferably, the driving piece is including setting up the driving motor of hollow shaft one side, driving motor's output fixed connection drive wheel, the fixed cover of outer wall of hollow shaft is equipped with from the driving wheel, the drive wheel with pass through belt transmission cooperation from the driving wheel.
Preferably, the fixed cover of hollow shaft outer wall is equipped with a plurality of bearings, the bearing outer wall with supporting seat inner wall fixed connection, two are no less than to the quantity of bearing.
The utility model discloses a following technological effect: the utility model discloses during the use, fix the device on work platform, make ultrasonic vibration wheel corresponding with the return pulley on the workstation, and there is certain clearance between the two, start supersonic generator and electrically conductive sliding ring, supersonic generator makes electrically conductive sliding ring to transducing piece output electric energy and ultrasonic wave, transducing piece is the mechanical vibration of corresponding frequency with electric energy conversion, and transmit to ultrasonic vibration takes turns to, make ultrasonic vibration wheel periphery produce periodic extension and shrink, the driving piece drives the hollow shaft rotation, it realizes the rotatory while vibration welding to make ultrasonic vibration wheel.
The utility model discloses regard ultrasonic vibration wheel as rotatable ultrasonic bonding tool, rotatory with the same linear velocity with the return pulley on traditional welding set, the non-woven fabrics passes through from the clearance, makes original sliding friction become rolling friction, has not only improved the welding speed upper limit, and the speed of ultrasonic vibration wheel, return pulley, cloth is identical completely among the welding process moreover, even appear material thickness change occasionally, also can accomplish the welding under two synchronous extrusions of wheel, improve continuous welding quality. Meanwhile, the directions of the ultrasonic transducer and the welding pressure are on two mutually perpendicular axes, the impact force of the radial surface of the ultrasonic vibration wheel cannot influence the energy conversion piece, so that the energy conversion piece cannot be damaged, meanwhile, a double-support structure is formed by the support flange and the connecting flange, the system rigidity is improved, the continuous welding quality is ensured, and the phenomenon that the welding quality is influenced due to the change of a gap between the ultrasonic vibration wheel and the bottom wheel under the action of the pressure is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a sectional view of the front view of the present invention.
The device comprises a supporting seat-1, a hollow shaft-2, an ultrasonic vibration wheel-3, an end cover-4, a conductive slip ring-5, an ultrasonic generator-6, a connecting flange-7, an amplitude modulator-8, a supporting flange-9, a transducer-10, a stud-11, a driving motor-12, a driving wheel-13, a driven wheel-14, a belt-15 and a bearing-16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a high rigidity high speed welding device, which comprises a supporting seat 1, wherein a hollow shaft 2 is rotationally connected in the supporting seat 1, an ultrasonic welding mechanism is arranged in the hollow shaft 2, and the supporting seat 1, the hollow shaft 2 and the ultrasonic welding mechanism are coaxially arranged;
ultrasonic welding mechanism includes ultrasonic vibration wheel 3, ultrasonic vibration wheel 3 passes through flange 7 fixed connection in the one end of hollow shaft 2, the one end fixedly connected with end cover 4 of ultrasonic vibration wheel 3 is kept away from to hollow shaft 2, amplitude regulating part and transducing piece have set gradually in the hollow shaft 2, ultrasonic vibration wheel 3 and amplitude regulating part, amplitude regulating part and the coaxial rigid coupling of transducing piece, install conductive sliding ring 5 on the end cover 4, conductive sliding ring 5 and transducing piece electric connection, conductive sliding ring 5 electric connection has supersonic generator 6, supersonic generator 6 sets up outside hollow shaft 2, amplitude regulating part passes through the radial rigid contact of flange 9 with 2 inner walls of hollow shaft, hollow shaft 2 is kept away from and is installed the driving piece that drives the rotation of hollow shaft 2 on the outer wall of 3 one ends of ultrasonic vibration wheel.
When the device is used, the device is fixed on a working platform, so that the ultrasonic vibration wheel 3 corresponds to a bottom wheel on the working platform, a certain gap exists between the ultrasonic vibration wheel 3 and the bottom wheel, the ultrasonic generator 6 and the conductive sliding ring 5 are started, the ultrasonic generator 6 enables the conductive sliding ring 5 to output electric energy and ultrasonic waves to the energy conversion piece, the energy conversion piece converts the electric energy into mechanical vibration with corresponding frequency, and the mechanical vibration is transmitted to the ultrasonic vibration wheel 3, and the circumferential surface of the ultrasonic vibration wheel 3 is periodically expanded and contracted. The driving piece drives the hollow shaft 2 to rotate, so that the ultrasonic vibration wheel 3 realizes vibration welding while rotating.
The conductive slip ring 5 is arranged at the axis position of the end cover 4, and the generator 6 can be fixed on the outer wall of the hollow shaft or the side wall of the end cover 4 in the actual use process.
The ultrasonic vibration wheel 3 is a typical axially vibrating and radially vibrating structure. By adjusting the size of each part characteristic, the breathing type vibration mode, the axial vibration and the radial vibration of the disc-shaped characteristic are integrated on the same part, and the axial vibration is input for excitation, and the radial vibration is output.
The gap between the ultrasonic vibration wheel 3 and the bottom wheel is adjusted according to the actual working requirement, and is not particularly limited herein. The connecting flange 7 and the end cover 4 form a closed space in the inner cavity of the hollow shaft 2.
Furthermore, the amplitude adjusting part comprises an amplitude modulator 8, a supporting flange 9 is led out from a node of the amplitude modulator 8, the energy conversion part is fixedly connected with one end, far away from the ultrasonic vibration wheel 3, of the amplitude modulator 8, and the amplitude modulator 8 is fixedly connected with the ultrasonic vibration wheel 3.
Among the present ultrasonic welding device, ultrasonic vibration wheel 3 only forms the single armed through flange 7 and supports, very easily takes place the bending under the effect of pressure, leads to the clearance between ultrasonic vibration wheel 3 and the return pulley to change, forms two bearing structure between support flange 9 and the flange 7, guarantees ultrasonic vibration wheel 3's stability, avoids leading to the clearance between ultrasonic vibration wheel 3 and the return pulley to change owing to pressure, influences welding quality. The support flange 9 may be formed integrally with the modulator 8 or may be fixed at a node of the modulator 8 by fitting.
Further, the transducer comprises a transducer 10, the transducer 10 is fixedly connected with the amplitude modulator 8, and the conductive slip ring 5 is electrically connected with the transducer 10.
Further, the ultrasonic vibration wheel 3 and the amplitude modulator 8, and the amplitude modulator 8 and the transducer 10 are coaxially and fixedly connected through the stud 11.
With the high speed rotation of the ultrasonic vibration wheel 3 and the bottom wheel, the stability of the gap between the two wheels is crucial, and the welding quality is directly affected. Therefore, when the ultrasonic vibration wheel 3, the amplitude modulator 8 and the transducer 10 are locked through the stud 11, the coaxiality is ensured at two joints by adopting the shaft hole characteristic positioning, so that the circumferential surface of the ultrasonic vibration wheel 3 keeps high-precision circumferential runout, the gap stability in the rotating process is ensured, and the welding quality is improved.
Further, the driving part comprises a driving motor 12 arranged on one side of the hollow shaft 2, the output end of the driving motor 12 is fixedly connected with a driving wheel 13, a driven wheel 14 is fixedly sleeved on the outer wall of the hollow shaft 2, and the driving wheel 13 and the driven wheel 14 are in transmission fit through a belt 15.
Further, the outer wall of the hollow shaft 2 is fixedly sleeved with a plurality of bearings 16, the outer wall of each bearing 16 is fixedly connected with the inner wall of the corresponding supporting seat 1, and the number of the bearings 16 is not less than two.
The specific implementation process comprises the following steps: the device is fixed on a working platform, so that the ultrasonic vibration wheel 3 corresponds to a bottom wheel on the working platform, a certain gap exists between the ultrasonic vibration wheel 3 and the bottom wheel, the ultrasonic generator 6 and the conductive sliding ring 5 are started, the ultrasonic generator 6 enables the conductive sliding ring 5 to output electric energy and ultrasonic waves to the transducer 10, the transducer 10 converts the electric energy into mechanical vibration with corresponding frequency, the mechanical vibration is transmitted to the ultrasonic vibration wheel 3, the circumferential surface of the ultrasonic vibration wheel 3 generates periodic expansion and contraction, the driving motor 12 drives the driving wheel 13 to rotate, the driving wheel 13 drives the driven wheel 14 and the hollow shaft 2 to rotate through the belt 15, and the ultrasonic vibration wheel 3 is enabled to realize vibration welding while rotating.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not limited to the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (6)
1. The high-rigidity high-speed welding device is characterized by comprising a supporting seat (1), wherein a hollow shaft (2) is rotationally connected to the supporting seat (1), an ultrasonic welding mechanism is arranged in the hollow shaft (2), and the supporting seat (1), the hollow shaft (2) and the ultrasonic welding mechanism are coaxially arranged;
the ultrasonic welding mechanism comprises an ultrasonic vibration wheel (3), the ultrasonic vibration wheel (3) is fixedly connected with one end of the hollow shaft (2) through a connecting flange (7), the hollow shaft (2) is kept away from one end fixedly connected with end cover (4) of the ultrasonic vibration wheel (3), an amplitude adjusting part and an energy transducing part are sequentially arranged in the hollow shaft (2), the ultrasonic vibration wheel (3) is electrically connected with the amplitude adjusting part and the energy transducing part in a coaxial and fixedly connected mode, an electrically conductive sliding ring (5) is installed on the end cover (4), the electrically conductive sliding ring (5) is electrically connected with the energy transducing part, the electrically conductive sliding ring (5) is electrically connected with an ultrasonic generator (6), the ultrasonic generator (6) is arranged outside the hollow shaft (2), the amplitude adjusting part is in radial rigid contact with the inner wall of the hollow shaft (2) through a supporting flange (9), and a driving piece for driving the hollow shaft (2) to rotate is arranged on the outer wall of one end, far away from the ultrasonic vibration wheel (3), of the hollow shaft (2).
2. The high rigidity high speed welding apparatus according to claim 1, wherein: the amplitude adjusting part comprises an amplitude modulator (8), the supporting flange (9) is led out from the node of the amplitude modulator (8), the energy conversion part is fixedly connected with one end, far away from the ultrasonic vibration wheel (3), of the amplitude modulator (8), and the amplitude modulator (8) is fixedly connected with the ultrasonic vibration wheel (3).
3. The high rigidity high speed welding apparatus according to claim 2, wherein: the energy conversion part comprises an energy converter (10), the energy converter (10) is fixedly connected with the amplitude modulator (8), and the conductive slip ring (5) is electrically connected with the energy converter (10).
4. The high rigidity high speed welding apparatus according to claim 3, wherein: the ultrasonic vibration wheel (3) is coaxially and fixedly connected with the amplitude modulator (8) and the amplitude modulator (8) is coaxially and fixedly connected with the energy transducer (10) through a double-end stud (11).
5. The high rigidity high speed welding apparatus according to claim 1, wherein: the driving piece is in including setting up driving motor (12) of hollow shaft (2) one side, the output fixed connection drive wheel (13) of driving motor (12), the outer wall fixed cover of hollow shaft (2) is equipped with from driving wheel (14), drive wheel (13) with pass through belt (15) transmission cooperation from driving wheel (14).
6. The high-rigidity high-speed welding device according to claim 1, wherein: the outer wall of the hollow shaft (2) is fixedly sleeved with a plurality of bearings (16), the outer wall of each bearing (16) is fixedly connected with the inner wall of the corresponding supporting seat (1), and the number of the bearings (16) is not less than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221191080.XU CN217346769U (en) | 2022-05-17 | 2022-05-17 | High-rigidity high-speed welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221191080.XU CN217346769U (en) | 2022-05-17 | 2022-05-17 | High-rigidity high-speed welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217346769U true CN217346769U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221191080.XU Active CN217346769U (en) | 2022-05-17 | 2022-05-17 | High-rigidity high-speed welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217346769U (en) |
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2022
- 2022-05-17 CN CN202221191080.XU patent/CN217346769U/en active Active
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