CN214726588U - Rotation type ultrasonic welding device - Google Patents
Rotation type ultrasonic welding device Download PDFInfo
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- CN214726588U CN214726588U CN202120414144.7U CN202120414144U CN214726588U CN 214726588 U CN214726588 U CN 214726588U CN 202120414144 U CN202120414144 U CN 202120414144U CN 214726588 U CN214726588 U CN 214726588U
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- bonding tool
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Abstract
The utility model relates to a rotation type ultrasonic welding device, including the controller, servo mechanism and the drive mechanism that connect gradually, drive mechanism is connected with rotatable gyro wheel and rotatable bonding tool respectively, makes gyro wheel and bonding tool take place synchronous revolution, and the gyro wheel sets up with the bonding tool relatively, and the gyro wheel is connected with the pneumatic mechanism who is used for providing pressure, and the bonding tool has connected gradually amplitude modulator, ultrasonic transducer and ultrasonic generrator. The controller provides a starting signal to the servo mechanism, the servo mechanism is started and drives the welding head and the roller to synchronously rotate through the transmission mechanism, when welding materials pass through the space between the welding head and the roller, ultrasonic starting is carried out, and meanwhile the pneumatic mechanism provides pressure to the roller to start welding. Compared with the prior art, the utility model discloses welding strength is higher, more even, can be applicable to ultra-thin and elastic material's hypervelocity welding well.
Description
Technical Field
The utility model belongs to the technical field of the ultrasonic welding technique and specifically relates to a rotation type ultrasonic welding device is related to.
Background
The ultrasonic plastic welding is that 50Hz/60Hz power frequency alternating current is converted into 20kHz, 30kHz or 40kHz electric energy through an ultrasonic generator so as to generate high-frequency high-voltage current, piezoelectric ceramic is excited to generate high-frequency vibration, the amplitude of the vibration is amplified through an amplitude modulator, the high-frequency vibration is transmitted to a material to be welded through a welding head, plastic molecules are excited to move, and the molecules collide and rub with each other, generate heat rapidly and are fused into a whole.
In the field of welding of films and non-woven fabrics, the traditional ultrasonic welding adopts a mode that a plane welding head is matched with a rotary bottom roller, and the welding is completed by controlling the speed, the welding gap and the amplitude. As shown in fig. 1, most of the conventional ultrasonic welding apparatuses use a vertical ultrasonic welding unit a in combination with a rotating bottom roller B, and use a pneumatic or servo control system to control the welding pressure and the welding gap, so as to complete the welding of the materials by the high-frequency vibration of the ultrasound and the external pressure. The prior art has very high requirements on equipment precision and debugging, has great limitation in application, cannot meet the welding of ultrathin and elastic materials in a high-speed mode, and when the high-speed and complex application environment is faced, the traditional ultrasonic welding cannot meet and ensure the welding quality and stability, and even if a full-servo transmission mode is adopted, the extrusion between a welding head and a roller can cause the problems of material asynchronization, wrinkling, stretching and the like, so the ultra-high speed welding of the ultrathin and elastic materials is not suitable.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to provide a rotation type ultrasonic welding device in order to overcome the defect that above-mentioned prior art exists to can be applicable to ultra-thin and elastic material's hypervelocity welding well.
The purpose of the utility model can be realized through the following technical scheme: the utility model provides a rotation type ultrasonic welding device, is including the controller, servo mechanism and the drive mechanism that connect gradually, drive mechanism is connected with rotatable gyro wheel and rotatable bonding tool respectively, makes gyro wheel and bonding tool take place synchronous revolution, the gyro wheel sets up with the bonding tool relatively, the gyro wheel is connected with the pneumatic mechanism who is used for providing pressure, the bonding tool has connected gradually amplitude modulator, ultrasonic transducer and ultrasonic generrator.
Further, the welding head is of a cylindrical structure, and the circumferential surface of the welding head is opposite to the circumferential surface of the roller.
Further, the width of the circumferential surface of the welding head is larger than that of the roller.
Further, a gap for passing through a material to be welded is provided between the circumferential surface of the welding head and the circumferential surface of the roller.
Furthermore, two ends of the roller are respectively connected with a first bearing.
Furthermore, one end of the roller is connected with a first belt pulley through a first bearing, and the first belt pulley is connected with a transmission mechanism.
Furthermore, two ends of the welding head are respectively connected with and provided with a second bearing.
Furthermore, one end of the welding head is connected with an ultrasonic transducer through a second bearing, and the ultrasonic transducer is connected with an ultrasonic generator through a sliding electric ring.
Further, a second belt pulley is arranged between the second bearing and the ultrasonic transducer, and the second belt pulley is connected with the transmission mechanism.
Furthermore, the first belt pulley and the second belt pulley are mutually linked through a transmission mechanism.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a rotation type bonding tool and the gyro wheel design of relative setting to all be connected to drive mechanism with bonding tool and gyro wheel, make the bonding tool can take place synchronous revolution with the bottom roll, only need apply certain pressure for the bottom roll when the supersound is opened and can satisfy super small gap, ultra-thin and elastic material's welding, and can improve welding strength and welding uniformity.
Two, the utility model discloses connect first bearing, connect the second bearing at the both ends of bonding tool at the both ends of gyro wheel respectively for the gyro wheel all realizes the dual node with the bonding tool and supports, with this accuracy nature and the stability that improves welding process, guarantees the welding effect.
Three, the utility model discloses with the design of the circumferential surface width of bonding tool for being greater than the circumferential surface width of gyro wheel to can adapt to different welding dimension and use, realize welding, cutting, processing operations such as punch and multilayer material complex.
Drawings
FIG. 1 is a schematic structural view of a conventional ultrasonic welding apparatus;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the installation effect of the idler wheel and the welding head in the present invention;
wherein: 1. the device comprises a controller, a servo mechanism, a transmission mechanism, a welding head, a roller, a pneumatic mechanism, a sliding electric ring, an ultrasonic transducer, a sliding electric ring, a sliding electric.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example (b):
as shown in fig. 2 and 3, a rotary ultrasonic welding device comprises a controller 1, a servo mechanism 2 and a transmission mechanism 3 which are connected in sequence, wherein the transmission mechanism 3 is respectively connected with a rotatable roller 5 and a rotatable welding head 4, so that the roller 5 and the welding head 4 synchronously rotate, the roller 5 and the welding head 4 are arranged oppositely, the roller 5 is connected with a pneumatic mechanism 6 for providing pressure, the welding head 4 is sequentially connected with an amplitude modulator, an ultrasonic transducer 402 and an ultrasonic generator, the controller 1 provides a starting signal for the servo mechanism 2, the servo motor is started and drives the ultrasonic welding head 4 and the roller 5 to synchronously rotate through the transmission mechanism 3, when a welding material passes through the space between the welding head 4 and the roller 5, ultrasonic starting is performed, meanwhile, the pneumatic mechanism 6 provides pressure for the roller 5, and welding is started.
The welding head 4 is specifically of a cylindrical structure, the circumferential surface of the welding head 4 is arranged opposite to the circumferential surface of the roller 5, in the embodiment, the width of the circumferential surface of the welding head 4 is larger than that of the circumferential surface of the roller 5, and a gap for passing through a material to be welded is arranged between the circumferential surface of the welding head 4 and the circumferential surface of the roller 5.
Two ends of the roller 5 are respectively connected with a first bearing 501, one end of the roller 5 is connected with a first belt pulley 502 through the first bearing 501, and the first belt pulley 502 is connected with the transmission mechanism 3.
Similarly, the two ends of the welding head 4 are respectively connected with the second bearings 403, one end of the welding head 4 is connected with the ultrasonic transducer 402 through the second bearings 403, the ultrasonic transducer 402 is connected with the ultrasonic generator through the sliding ring 401, in addition, a second belt pulley 404 is arranged between the second bearings 403 and the ultrasonic transducer, and the second belt pulley 404 is connected with the transmission mechanism 3, so that the first belt pulley 502 and the second belt pulley 404 are mutually linked through the transmission mechanism 3.
The roller type welding head, the double-amplitude modulator and the welding head are integrally processed, the double-node support can provide a more accurate and stable welding effect, and the welding head and the roller rotate synchronously, so that the application of ultra-high speed welding is met. The welding process specifically comprises the following steps: ultrasonic generator provides the high-frequency electric signal and passes through the smooth electric ring drive transducer and integral type ultrasonic wave bonding tool subassembly and produce high-frequency vibration, and when the material passed through between bonding tool and the gyro wheel, the gyro wheel realized the linkage with the ultrasonic wave subassembly under pressure system's drive, and bonding tool and gyro wheel realize firm the installation through the bearing at respective both ends to realize the linkage through respective belt pulley and drive mechanism.
In practical application, the ultrasonic generator converts 220V and 50/60Hz current into 20000/30000/40000Hz high-frequency high-voltage current, an ultrasonic signal is transmitted to the ultrasonic transducer through an RF wire to generate high-frequency vibration, and the transducer amplifies the high-frequency vibration through the amplitude modulator and outputs the amplitude to the welding head. The servo motor drives the welding head component and the embossing roller component (namely the roller) to do synchronous rotation motion, and under the action of external pressure and ultrasonic high-frequency vibration, the molecules of the excitation material move at high speed, are instantaneously melted and are fixed into a whole.
In conclusion, the technical scheme adopts the mode that the welding head and the bottom roller rotate synchronously, the welding of small gaps and ultrathin materials can be met only by applying certain pressure when the ultrasonic switch is started, and compared with the existing mode, the technical scheme has the advantages of higher welding strength, more uniformity, lower power consumption and more efficient welding. Especially for some materials which can not be solved or have poor welding performance in the prior art, the welding strength is higher, and the welding quality is more stable.
According to the technical scheme, the rotary ultrasonic welding head is adopted, double-node support is adopted, and the rotary ultrasonic welding head and the rotary patterned roller move synchronously, so that the welding efficiency and the welding stability are effectively improved;
the ultrasonic welding head assembly can be flexibly selected according to application requirements, such as a vertical direction vibration or a horizontal direction vibration, a half-wave welding head and a full-wave welding head;
the tool can be quickly replaced, and the application of various scenes such as welding, cutting, punching, multi-layer material compounding and the like can be realized;
the operable and expandable space is large. Different welding sizes and applications can be met through simple adjustment, the operation is flexible, and the precision is controllable;
the servo drive and the synchronous gear drive are adopted, and the multi-slide rail type pressure actuating mechanism has higher transmission efficiency and better equipment stability;
the welding parameter presetting and online real-time adjustment can be realized by matching with a digital control system, a welding curve is obtained in real time, and the quality is tracked in real time;
the modularized combination design is adopted, various automatic devices and different application scenes can be matched, diversified requirements of users are met, and welding applications include but are not limited to welding, cutting, compounding, packaging, punching and the like of non-woven fabrics, filtering membranes, plastic films, metal films and elastic materials.
Claims (10)
1. The utility model provides a rotation type ultrasonic welding device, its characterized in that, is including controller (1), servo (2) and drive mechanism (3) that connect gradually, drive mechanism (3) are connected with rotatable gyro wheel (5) and rotatable bonding tool (4) respectively, make gyro wheel (5) and bonding tool (4) take place synchronous revolution, gyro wheel (5) set up with bonding tool (4) relatively, gyro wheel (5) are connected with pneumatic mechanism (6) that are used for providing pressure, bonding tool (4) have connected gradually amplitude modulator, ultrasonic transducer (402) and ultrasonic generator.
2. A rotary ultrasonic welding device according to claim 1, characterized in that the welding head (4) is embodied as a cylindrical structure, the circumferential surface of the welding head (4) being arranged opposite the circumferential surface of the roller (5).
3. A rotary ultrasonic welding apparatus according to claim 2, characterized in that the width of the circumferential surface of the horn (4) is greater than the width of the circumferential surface of the roller (5).
4. A rotary ultrasonic welding apparatus as claimed in claim 2, characterized in that a gap is provided between the circumferential surface of the horn (4) and the circumferential surface of the roller (5) for passing through the material to be welded.
5. A rotary ultrasonic welding apparatus according to claim 1, characterized in that a first bearing (501) is attached to each end of the roller (5).
6. A rotary ultrasonic welding device according to claim 5, characterized in that one end of the roller (5) is connected with a first pulley (502) via a first bearing (501), and the first pulley (502) is connected with the transmission mechanism (3).
7. A rotary ultrasonic welding device according to claim 6, characterized in that the two ends of the horn (4) are respectively provided with a second bearing (403) in a connected manner.
8. A rotary ultrasonic welding apparatus according to claim 7, characterized in that one end of the horn (4) is connected to an ultrasonic transducer (402) via a second bearing (403), the ultrasonic transducer (402) being connected to an ultrasonic generator via a slip ring (401).
9. A rotary ultrasonic welding device according to claim 8, characterized in that a second pulley (404) is arranged between the second bearing (403) and the ultrasonic transducer (402), said second pulley (404) being connected to the transmission (3).
10. A rotary ultrasonic welding apparatus according to claim 9, characterized in that the first pulley (502) and the second pulley (404) are coupled to each other by a transmission mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120414144.7U CN214726588U (en) | 2021-02-25 | 2021-02-25 | Rotation type ultrasonic welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120414144.7U CN214726588U (en) | 2021-02-25 | 2021-02-25 | Rotation type ultrasonic welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214726588U true CN214726588U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120414144.7U Active CN214726588U (en) | 2021-02-25 | 2021-02-25 | Rotation type ultrasonic welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214726588U (en) |
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2021
- 2021-02-25 CN CN202120414144.7U patent/CN214726588U/en active Active
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