CN114801199A - Non-woven fabric hard connection radial wave generating device and method - Google Patents

Non-woven fabric hard connection radial wave generating device and method Download PDF

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Publication number
CN114801199A
CN114801199A CN202210412531.6A CN202210412531A CN114801199A CN 114801199 A CN114801199 A CN 114801199A CN 202210412531 A CN202210412531 A CN 202210412531A CN 114801199 A CN114801199 A CN 114801199A
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sliding
shell
slide
ultrasonic element
groove
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CN114801199B (en
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罗凯
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Zhejiang Dingbo Intelligent Technology Co ltd
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Zhejiang Dingbo Intelligent Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention discloses a non-woven fabric hard connection radial wave generating device which comprises a shell, a supporting mechanism, an ultrasonic element, a sliding seat, a convex block, a shell cover, a limiting mechanism, a fan, an air inlet hole, an air outlet hole and a filter screen. The invention relates to a radial wave generating device and method for hard connection of non-woven fabrics, which have the characteristics of higher non-woven fabric welding efficiency and attractive welding seams.

Description

Non-woven fabric hard connection radial wave generation device and method
Technical Field
The invention belongs to the technical field of hard connection processing of non-woven fabrics, and particularly relates to a hard connection radial wave generating device and method for non-woven fabrics.
Background
The non-woven fabric hard connection is that the non-woven fabric is processed by generating high-frequency vibration for the voltage of the transducer through the ultrasonic generator, the generator has low welding efficiency on the non-woven fabric by longitudinally vibrating a non-woven fabric shaft, and meanwhile, when the device is used for welding the non-woven fabric, welding seams are irregular. It is therefore desirable to provide a nonwoven rigid link radial wave generating device.
The invention content is as follows:
the present invention is directed to a device and a method for rigid-connection radial wave generation of nonwoven fabric, which solves the above-mentioned problems.
In order to solve the above problems, the present invention provides a technical solution:
the utility model provides a radial ripples device that sends out of non-woven fabrics rigid coupling, includes casing, supporting mechanism, ultrasonic element, slide, lug, cap, stop gear, fan, inlet port, venthole and filter screen, be provided with supporting mechanism on the casing, the last ultrasonic element that is provided with of supporting mechanism, it has the slide to bond on the ultrasonic element, there is the cap through threaded connection on the casing, be provided with stop gear on the cap, fixed mounting has the fan on the cap, the inlet port has been seted up on the cap, the venthole has been seted up on the cap, it has the filter screen to bond on the cap.
Preferably, a bump is welded on the sliding seat, and the bump is in contact with the shell. By providing the projection, the friction between the slider and the housing is reduced.
As preferred, supporting mechanism includes splint, slider, storage tank, gag lever post, spout, spring, screw rod, supporting disk, guide slot, sliding pin, pull rod, clamp splice and fixture block, splint and casing contact, splint and ultrasonic component contact, the welding has the slider on the splint, the storage tank has been seted up on the casing, sliding connection has the slider in the storage tank, the welded gag lever post in the storage tank, the outside of gag lever post is provided with the spring, there is the screw rod through threaded connection in the slide, the fixed supporting disk that has cup jointed in the outside of screw rod, the guide slot has been seted up in the supporting disk, sliding connection has the sliding pin in the guide slot, the welding has the pull rod on the sliding pin, the welding has the clamp splice on the pull rod, clamp splice and splint contact. After the ultrasonic element is clamped by the clamping plate, the screw rod and the sliding seat are rotated to perform threaded motion, so that the sliding pin slides in the guide groove, the clamping block clamps the clamping plate on the ultrasonic element, and the shell of the device cannot influence the radial vibration of the ultrasonic element after the ultrasonic element is connected with the shell.
Preferably, the sliding block is provided with a sliding groove, and a limiting rod is connected in the sliding groove in a sliding manner. Through setting up the spout for the gag lever post can slide in the slider.
Preferably, one end of the spring is welded to the housing, and the other end of the spring is in contact with the slider. Through setting up the spring for the slider can automatic re-setting.
Preferably, a clamping block is welded on the clamping block, and the clamping block is connected with the clamping plate in a sliding mode. Through setting up the fixture block, increase the connection stability between clamp splice and the splint.
Preferably, stop gear includes spacing ring, spacing groove, guide holder, inserted bar, dog, slide and pressure spring, spacing ring and cap welding, it has a plurality of spacing grooves to be annular array distribution on the spacing ring, the welding has the guide holder on the casing, sliding connection has the inserted bar in the guide holder, inserted bar and spacing groove sliding connection, the welding has the dog on the inserted bar, dog and guide holder contact, the fixed slide that has cup jointed in the outside of inserted bar, slide and guide holder slip ring are connected, the outside of inserted bar is provided with the pressure spring. Casing and cap threaded connection back, peg graft through the inserted bar and get into the spacing inslot, and then make and carry on spacingly to the spacing ring for the difficult not hard up of connection between cap and the casing is more stable.
Preferably, one end of the pressure spring is welded with the guide seat, and the other end of the pressure spring is welded with the sliding plate. Through setting up the pressure spring for the slide is convenient for reset.
A use method of a non-woven fabric hard connection radial wave generating device comprises the following specific steps:
the method comprises the following steps: when the ultrasonic element is installed, the clamping plate is moved to the direction far away from the central point of the shell, the clamping plate is moved to drive the sliding block to move, the sliding block moves in the accommodating groove to slide, the spring is further compressed, the ultrasonic element is bonded on the sliding seat, then the convex block on the sliding seat is contacted with the shell, then the clamping plate is loosened, the spring is reset to drive the sliding block to reset, and the clamping plate is contacted with the ultrasonic element;
step two: inserting the clamping block into the clamping plate, then pressing the sliding seat, rotating the screw rod and the sliding seat to perform threaded motion, further enabling the sliding pin to slide in the guide groove, further enabling the clamping block to clamp the clamping plate on the ultrasonic element, and enabling the shell of the device not to affect the radial vibration of the ultrasonic element after the ultrasonic element is connected with the shell;
step three: pulling the inserted bar in the direction far away from the central point of the shell, driving the sliding plate to move by the inserted bar, compressing the pressure spring by the movement of the sliding plate, and connecting the shell cover and the shell through threads;
step four: the pressing spring of the inserted rod is loosened to reset to drive the sliding plate to move towards the outside of the guide seat, and the sliding plate drives the inserted rod to move so that the tail end of the inserted rod is inserted into the limiting groove to limit the limiting ring, so that the connection between the shell cover and the shell is more stable and is not easy to loosen;
step five: after the device is integrally installed stably, the ultrasonic element is started through the external controller to carry out ultrasonic processing on the non-woven fabric, the ultrasonic element generates radial vibration relative to the shell after being started, in the process, the vibration of the ultrasonic element drives the clamping plate to move, the clamping plate moves to drive the sliding block to move, the sliding block moves in the accommodating groove, and then the spring is made to stretch and shrink.
The invention has the beneficial effects that: the invention relates to a non-woven fabric hard connection radial wave generating device and a method, which have the characteristics of higher non-woven fabric welding efficiency and attractive welding seams, and compared with the traditional non-woven fabric hard connection radial wave generating device and method, the non-woven fabric hard connection radial wave generating device and method have the following two beneficial effects:
firstly, through setting up splint, the slider, the storage tank, the spout, a spring, the screw rod, the supporting disk, the guide slot, the sliding pin, the pull rod, clamp splice isotructure, after to the ultrasonic component centre gripping through splint, be screw motion through rotating screw rod and slide, and then make the sliding pin slide in the guide slot, and then make the clamp splice press from both sides the splint tightly on the ultrasonic component, make ultrasonic component and casing connect the back, the device casing can not lead to the fact the influence to the radial vibrations of ultrasonic component, make the ultrasonic component vertically send out ripples, make welding speed fast, welding strength is high, the welding seam is beautiful, the leakproofness is good, the energy consumption is low, and the operation is simple, and wide application.
Secondly, through setting up structures such as spacing ring, spacing groove, guide holder, inserted bar, dog, slide, pressure spring, casing and cap threaded connection back, peg graft through the inserted bar and get into the spacing inslot, and then make and carry on spacingly to the spacing ring for the connection between cap and the casing is difficult for not hard up more stably.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is a front cross-sectional view of FIG. 1 of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of the invention at B in FIG. 2;
FIG. 5 is a top view of the slider of FIG. 4 in accordance with the present invention;
FIG. 6 is an enlarged view of the invention at C of FIG. 2;
FIG. 7 is a top plan view of the support disk of FIG. 6 in accordance with the present invention;
fig. 8 is an enlarged view of the invention at D in fig. 2.
In the figure: 1. a housing; 2. a support mechanism; 21. a splint; 22. a slider; 23. a containing groove; 24. a limiting rod; 25. a chute; 26. a spring; 27. a screw; 28. a support disc; 29. a guide groove; 210. a slide pin; 211. a pull rod; 212. a clamping block; 213. a clamping block; 3. an ultrasonic element; 4. a slide base; 5. a bump; 6. a shell cover; 7. a limiting mechanism; 71. a limiting ring; 72. a limiting groove; 73. a guide seat; 74. inserting a rod; 75. a stopper; 76. a slide plate; 77. a pressure spring; 8. a fan; 9. an air inlet; 10. an air outlet; 11. and (5) filtering by using a filter screen.
The specific implementation mode is as follows:
as shown in fig. 1 to 8, the following technical solutions are adopted in the present embodiment:
the embodiment is as follows:
the utility model provides a radial ripples device that sends out of non-woven fabrics rigid coupling, includes casing 1, supporting mechanism 2, ultrasonic element 3, slide 4, lug 5, cap 6, stop gear 7, fan 8, inlet port 9, venthole 10 and filter screen 11, be provided with supporting mechanism 2 on the casing 1, be provided with ultrasonic element 3 on the supporting mechanism 2, it has slide 4 to bond on the ultrasonic element 3, there is cap 6 through threaded connection on the casing 1, be provided with stop gear 7 on the cap 6, fixed mounting has fan 8 on the cap 6, inlet port 9 has been seted up on the cap 6, venthole 10 has been seted up on the cap 6, it has filter screen 11 to bond on the cap 6.
Wherein, the sliding seat 4 is welded with a lug 5, and the lug 5 is contacted with the shell 1. By providing the projection 5, the friction between the slider 4 and the housing 1 is reduced.
Wherein, the supporting mechanism 2 comprises a clamping plate 21, a sliding block 22, a containing groove 23, a limiting rod 24, a sliding groove 25, a spring 26, a screw 27, a supporting plate 28, a guide groove 29, a sliding pin 210, a pull rod 211, a clamping block 212 and a clamping block 213, the clamping plate 21 contacts with the shell 1, the clamping plate 21 contacts with the ultrasonic element 3, the sliding block 22 is welded on the clamping plate 21, the containing groove 23 is formed on the shell 1, the sliding block 22 is connected in the containing groove 23 in a sliding manner, the limiting rod 24 is welded in the containing groove 23, the spring 26 is arranged on the outer side of the limiting rod 24, the screw 27 is connected in the sliding seat 4 through threads, the supporting plate 28 is fixedly sleeved on the outer side of the screw 27, the guide groove 29 is formed in the supporting plate 28, the sliding pin 210 is connected in the guide groove 29 in a sliding manner, the pull rod 211 is welded on the sliding pin 210, the clamping block 212 is welded on the pull rod 211, the clamp block 212 is in contact with the clamp plate 21. After the ultrasonic element 3 is clamped by the clamping plate 21, the screw 27 and the sliding seat 4 are rotated to perform a threaded motion, so that the sliding pin 210 slides in the guide groove 29, and the clamping block 212 clamps the clamping plate 21 on the ultrasonic element 3, so that after the ultrasonic element 3 is connected with the shell 1, the radial vibration of the ultrasonic element 3 cannot be influenced by the shell 1.
The sliding block 22 is provided with a sliding groove 25, and the sliding groove 25 is connected with a limiting rod 24 in a sliding manner. The slide slot 25 is provided to allow the stopper rod 24 to slide in the slider 22.
Wherein one end of the spring 26 is welded with the shell 1, and the other end of the spring 26 is contacted with the sliding block 22. The slide 22 is automatically returned by the spring 26.
A fixture block 213 is welded on the clamping block 212, and the fixture block 213 is slidably connected with the clamping plate 21. By providing the latch 213, the stability of the connection between the clamp block 212 and the clamp plate 21 is increased.
Wherein, stop gear 7 includes spacing ring 71, spacing groove 72, guide holder 73, inserted bar 74, dog 75, slide 76 and pressure spring 77, spacing ring 71 and 6 welding of cap, it has a plurality of spacing grooves 72 to be the annular array distribution on the spacing ring 71, the welding has guide holder 73 on the casing 1, sliding connection has inserted bar 74 in the guide holder 73, inserted bar 74 and spacing groove 72 sliding connection, the welding has dog 75 on the inserted bar 74, dog 75 and guide holder 73 contact, slide 76 has been fixed to have cup jointed in the outside of inserted bar 74, slide 76 and guide holder 73 sliding connection, the outside of inserted bar 74 is provided with pressure spring 77. After the shell 1 and the shell cover 6 are in threaded connection, the inserted rod 74 is inserted into the limiting groove 72, and then the limiting ring 71 is limited, so that the connection between the shell cover 6 and the shell 1 is more stable and is not easy to loosen.
One end of the compression spring 77 is welded with the guide seat 73, and the other end of the compression spring 77 is welded with the sliding plate 76. The slide plate 76 is easily reset by providing a compression spring 77.
A use method of a non-woven fabric hard connection radial wave generating device comprises the following specific steps:
the method comprises the following steps: when the ultrasonic element 3 is installed, the clamping plate 21 is moved in the direction away from the central point of the shell 1, the clamping plate 21 is moved to drive the sliding block 22 to move, the sliding block 22 moves in the accommodating groove 23 to slide, so that the spring 26 is compressed, then the ultrasonic element 3 is bonded on the sliding seat 4, then the convex block 5 on the sliding seat 4 is contacted with the shell 1, then the clamping plate 21 is loosened, and the spring 26 is reset to drive the sliding block 22 to reset, so that the clamping plate 21 is contacted with the ultrasonic element 3;
step two: inserting the clamping block 212 into the clamping plate 21, then pressing the sliding seat 4, rotating the screw 27 and the sliding seat 4 to perform a threaded motion, further enabling the sliding pin 210 to slide in the guide groove 29, further enabling the clamping block 212 to clamp the clamping plate 21 on the ultrasonic element 3, and enabling the device shell 1 not to affect the radial vibration of the ultrasonic element 3 after the ultrasonic element 3 is connected with the shell 1;
step three: the inserting rod 74 is pulled in the direction away from the central point of the shell 1, the inserting rod 74 drives the sliding plate 76 to move, the sliding plate 76 moves to enable the compression spring 77 to be compressed, and then the shell cover 6 is connected with the shell 1 through threads;
step four: the pressing spring 77 of the inserted rod 74 is loosened to reset to drive the sliding plate 76 to move towards the outside of the guide seat 73, the sliding plate 76 drives the inserted rod 74 to move, so that the tail end of the inserted rod 74 is inserted into the limiting groove 72, the limiting ring 71 is limited, and the connection between the shell cover 6 and the shell 1 is more stable and is not easy to loosen;
step five: after being stable with device integral erection, start ultrasonic component 3 through external controller and carry out ultrasonic machining to the non-woven fabrics, ultrasonic component 3 starts the relative casing 1 production radial vibration of back, and at this in-process, ultrasonic component 3's vibrations drive splint 21 and remove, and splint 21 removes and drives slider 22 and remove, and slider 22 removes and slides in storage tank 23, and then makes the flexible change of spring 26.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a radial ripples device that sends out of non-woven fabrics rigid coupling, includes casing (1), supporting mechanism (2), ultrasonic element (3), slide (4), lug (5), cap (6), stop gear (7), fan (8), inlet port (9), venthole (10) and filter screen (11), its characterized in that: be provided with supporting mechanism (2) on casing (1), be provided with ultrasonic element (3) on supporting mechanism (2), it has slide (4) to bond on ultrasonic element (3), there is cap (6) through threaded connection on casing (1), be provided with stop gear (7) on cap (6), fixed mounting has fan (8) on cap (6), inlet port (9) have been seted up on cap (6), venthole (10) have been seted up on cap (6), it has filter screen (11) to bond on cap (6).
2. The non-woven fabric rigid link radial wave generation device of claim 1, wherein: the welding has lug (5) on slide (4), lug (5) and casing (1) contact.
3. The non-woven fabric rigid link radial wave generation device of claim 1, wherein: the supporting mechanism (2) comprises a clamping plate (21), a sliding block (22), a containing groove (23), a limiting rod (24), a sliding groove (25), a spring (26), a screw rod (27), a supporting plate (28), a guide groove (29), a sliding pin (210), a pull rod (211), a clamping block (212) and a clamping block (213), the clamping plate (21) is in contact with the shell (1), the clamping plate (21) is in contact with the ultrasonic element (3), the sliding block (22) is welded on the clamping plate (21), the containing groove (23) is formed in the shell (1), the sliding block (22) is connected in the containing groove (23) in a sliding mode, the limiting rod (24) is welded in the containing groove (23), the spring (26) is arranged on the outer side of the limiting rod (24), the screw rod (27) is connected in the sliding seat (4) through threads, the supporting plate (28) is fixedly sleeved on the outer side of the screw rod (27), guide slot (29) have been seted up in supporting disk (28), sliding connection has sliding pin (210) in guide slot (29), the welding has pull rod (211) on sliding pin (210), the welding has clamp splice (212) on pull rod (211), clamp splice (212) and splint (21) contact.
4. A nonwoven fabric rigid link radial wave generator as claimed in claim 3, wherein: a sliding groove (25) is formed in the sliding block (22), and a limiting rod (24) is connected in the sliding groove (25) in a sliding mode.
5. A nonwoven fabric rigid link radial wave generator as claimed in claim 3, wherein: one end of the spring (26) is welded with the shell (1), and the other end of the spring (26) is in contact with the sliding block (22).
6. A nonwoven fabric rigid link radial wave generator as claimed in claim 3, wherein: a clamping block (213) is welded on the clamping block (212), and the clamping block (213) is connected with the clamping plate (21) in a sliding mode.
7. The non-woven fabric rigid link radial wave generation device of claim 1, wherein: stop gear (7) include spacing ring (71), spacing groove (72), guide holder (73), inserted bar (74), dog (75), slide (76) and pressure spring (77), spacing ring (71) and cap (6) welding, it has a plurality of spacing grooves (72) to be annular array distribution on spacing ring (71), the welding has guide holder (73) on casing (1), sliding connection has inserted bar (74) in guide holder (73), inserted bar (74) and spacing groove (72) sliding connection, the welding has dog (75) on inserted bar (74), dog (75) and guide holder (73) contact, slide (76) have been fixed to cup jointed in the outside of inserted bar (74), slide (76) and guide holder (73) slip ring are connected, the outside of inserted bar (74) is provided with pressure spring (77).
8. The non-woven fabric rigid connection radial wave generation device according to claim 7, characterized in that: one end of the pressure spring (77) is welded with the guide seat (73), and the other end of the pressure spring (77) is welded with the sliding plate (76).
9. The use method of a non-woven fabric rigid connection radial wave generation device according to any one of claims 1 to 8, characterized in that: the method comprises the following specific steps:
the method comprises the following steps: when the ultrasonic element (3) is installed, the clamping plate (21) is moved in the direction far away from the central point of the shell (1), the clamping plate (21) is moved to drive the sliding block (22) to move, the sliding block (22) is moved to slide in the accommodating groove (23), the spring (26) is further compressed, then the ultrasonic element (3) is bonded on the sliding seat (4), then the convex block (5) on the sliding seat (4) is contacted with the shell (1), then the clamping plate (21) is loosened, and the spring (26) is reset to drive the sliding block (22) to reset, so that the clamping plate (21) is contacted with the ultrasonic element (3);
step two: inserting a clamping block (212) into a clamping plate (21), then pressing a sliding seat (4), rotating a screw rod (27) and the sliding seat (4) to perform threaded motion, further enabling a sliding pin (210) to slide in a guide groove (29), further enabling the clamping block (212) to clamp the clamping plate (21) on an ultrasonic element (3), and enabling the device shell (1) not to influence the radial vibration of the ultrasonic element (3) after the ultrasonic element (3) is connected with the shell (1);
step three: the inserted rod (74) is pulled in the direction far away from the center point of the shell (1), the inserted rod (74) drives the sliding plate (76) to move, the sliding plate (76) moves to enable the pressure spring (77) to be compressed, and then the shell cover (6) is connected with the shell (1) through threads;
step four: when the inserting rod (74) is loosened, the pressure spring (77) resets to drive the sliding plate (76) to move towards the outside of the guide seat (73), the sliding plate (76) drives the inserting rod (74) to move, so that the tail end of the inserting rod (74) is inserted into the limiting groove (72), the limiting ring (71) is limited, and the connection between the shell cover (6) and the shell body (1) is more stable and is not easy to loosen;
step five: after being stable with device integral erection, start ultrasonic component (3) through external controller and carry out ultrasonic machining to the non-woven fabrics, ultrasonic component (3) start back relative casing (1) produce radial vibration, at this in-process, the vibrations of ultrasonic component (3) drive splint (21) and remove, splint (21) remove and drive slider (22) and remove, slider (22) remove and slide in storage tank (23), and then make the flexible change of spring (26).
CN202210412531.6A 2022-04-19 2022-04-19 Non-woven fabric hard-connection radial wave generating device and method Active CN114801199B (en)

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CN202210412531.6A CN114801199B (en) 2022-04-19 2022-04-19 Non-woven fabric hard-connection radial wave generating device and method

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CN202210412531.6A CN114801199B (en) 2022-04-19 2022-04-19 Non-woven fabric hard-connection radial wave generating device and method

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100715714B1 (en) * 2005-11-18 2007-05-08 안용우 The click unit of ultrasonic welding machine
US20150360414A1 (en) * 2014-06-17 2015-12-17 GM Global Technology Operations LLC Ultrasonic welder clamp
CN111086218A (en) * 2019-12-31 2020-05-01 仙桃市中泰防护用品股份有限公司 Non-woven fabrics welding cuts integrative device
CN111531898A (en) * 2020-06-12 2020-08-14 常州德悦自动化设备有限公司 Radial wave-generating ultrasonic lace machine
CN215918084U (en) * 2021-09-30 2022-03-01 浙江鼎博智能科技有限公司 Ultrasonic radial wave-emitting module convenient to install

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100715714B1 (en) * 2005-11-18 2007-05-08 안용우 The click unit of ultrasonic welding machine
US20150360414A1 (en) * 2014-06-17 2015-12-17 GM Global Technology Operations LLC Ultrasonic welder clamp
CN111086218A (en) * 2019-12-31 2020-05-01 仙桃市中泰防护用品股份有限公司 Non-woven fabrics welding cuts integrative device
CN111531898A (en) * 2020-06-12 2020-08-14 常州德悦自动化设备有限公司 Radial wave-generating ultrasonic lace machine
CN215918084U (en) * 2021-09-30 2022-03-01 浙江鼎博智能科技有限公司 Ultrasonic radial wave-emitting module convenient to install

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