CN114536775A - Rotary ultrasonic welding device - Google Patents
Rotary ultrasonic welding device Download PDFInfo
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- CN114536775A CN114536775A CN202210153946.6A CN202210153946A CN114536775A CN 114536775 A CN114536775 A CN 114536775A CN 202210153946 A CN202210153946 A CN 202210153946A CN 114536775 A CN114536775 A CN 114536775A
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- 238000003466 welding Methods 0.000 title claims abstract description 266
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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- Absorbent Articles And Supports Therefor (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
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Abstract
The embodiment of the invention provides a rotary ultrasonic welding device, which comprises a welding mechanism configured with n welding parts, wherein the welding mechanism comprises an anvil block and n welding assemblies, the anvil block comprises an abutting surface provided with n abutting areas, the welding assemblies comprise a welding head and an ultrasonic generating mechanism, the welding head comprises a welding area, each welding part comprises a pair of correspondingly arranged welding area and abutting area, a welded object comprises n sub-areas, the expansion diagram of each welding area is matched with the shape of one of the n sub-areas, the n welding parts are configured to perform ultrasonic welding on different sub-areas, and the welded object forms a preset area after being sequentially welded by the n welding parts, so that a complete preset shape is formed.
Description
Technical Field
The present invention relates to a rotary ultrasonic welding apparatus.
Background
In the disposable sanitary product, a plurality of layers of sheet materials need to be laminated, and particularly, a peripheral seal needs to be formed by combining the sheet materials at the edge area of the product so as to completely wrap the absorber in a containing space formed by a surface layer and a bottom layer.
In the prior art, the peripheral seal embossing is usually formed in the form of heated rollers, but this method is inefficient, consumes high energy, and requires precise temperature control to prevent the high temperature from scalding the material, and ultrasonic welding is very suitable for joining multiple layers of sheet materials used for disposable sanitary products.
Some ultrasonic welding techniques have been used, and the welding devices used in these welding techniques generally include a welding head and an anvil, and when the material layer passes between the welding head and the anvil, the material layer is applied with pressure and ultrasonic waves by the welding head or the anvil to form a weld on the material layer, and in this way, the welding on the material layer can be performed only intermittently, and the production efficiency is extremely low, so that an improved technique for this way has been developed, as shown in CN105934330A, in which several welding heads are radially arranged on a rotating roller, and in production, the material layer can pass through each welding head in turn, and the welding on the material layer is completed by the several welding heads in turn, but this way makes the structure of the welding device extremely complex, expensive, and less reliable.
In addition, there is a continuous welding apparatus, called full-width ultrasonic welding apparatus, in the prior art, which includes a cylindrical welding head, and continuously welds the material layer by the cylindrical welding head, but the welding apparatus is limited by physical rules, and the welding width of the welding apparatus is only 60mm at the maximum, and the welding efficiency is greatly reduced beyond the size, and even the welding operation cannot be completed, so that the welding apparatus can be used only for welding a single seam or a small width and a small area.
However, since there are a large number of large-area material layer connections, such as peripheral seals, in disposable sanitary products, there is a need for a rotary ultrasonic welding apparatus that has a simple structure and can efficiently complete the large-area material layer connections.
Disclosure of Invention
Therefore, the present invention provides a rotary ultrasonic device to solve the above technical problems.
A rotary ultrasonic welding apparatus for ultrasonic welding of an object to be welded in a predetermined region, comprising,
the welding mechanism is provided with n welding parts, and comprises an anvil block which is arranged in a rotating mode and n welding assemblies which are arranged along the circumferential direction of the anvil block:
the anvil block comprises abutting surfaces which are sequentially provided with n abutting areas along the axial direction, and the welding assembly comprises a cylindrical welding head and an ultrasonic generating mechanism connected with the welding head, wherein the welding head is arranged corresponding to the abutting areas;
the welding head comprises a welding area positioned on the circumferential surface of the welding head, the welding area and the abutting area are correspondingly arranged at intervals, each welding part comprises a pair of correspondingly arranged welding area and abutting area, the object to be welded comprises n sub-areas, the expansion diagram of each welding area is matched with the form of one of the n sub-areas, the n welding parts are configured to carry out ultrasonic welding on different sub-areas, and the object to be welded forms a preset area after sequentially passing through the n welding parts;
wherein n is more than or equal to 2, and the width of the preset area is more than 60 mm.
Further, the predetermined region is divided into n sub-regions along a virtual straight line parallel to the length direction, and if the width of the predetermined region is W and the length is L, the widths of the 1 st and 2 … … n sub-regions are W1, W2 … … Wn, and the lengths of the 1 st and 2 … … n sub-regions are L1 and L2 … … Ln, there are W = W1+ W2 … … + Wn, and L = L1= L2 … … = Ln.
Further, n =2, the welding mechanism includes a first welding assembly and a second welding assembly, the first welding assembly includes a first welding head, the second welding assembly includes a second welding head, the first welding head and the second welding head are arranged along the circumferential direction of the anvil at intervals, and are sequentially arranged along the axial direction of the anvil.
Furthermore, the included angle between the plane formed by the central axis of the first welding head and the rotation axis of the anvil and the vertical plane passing through the rotation axis of the anvil is 30-75 degrees, and the second welding head and the first welding head are symmetrically arranged along the vertical plane passing through the rotation axis of the anvil.
Further, the first welding head and the second welding head are arranged below the side of the anvil, and the welding mechanism further comprises an adjusting device for adjusting the position of the anvil along the vertical direction.
Further, the welding mechanism further comprises a transition wheel which is arranged on a moving path of the welded object from the first welding part to the second welding part and is used for separating the welded object from the anvil.
Further, the object to be welded is configured to enter the first welding portion in a tangential direction of the anvil and enter the second welding portion in the tangential direction after passing through the transition wheel.
Furthermore, welding mechanism still including setting up the first deflector roll in first welding portion upstream, the second deflector roll in second welding portion downstream, first deflector roll, second deflector roll set up along a vertical plane symmetry that passes through the anvil axis of rotation, first deflector roll, second deflector roll be located the anvil top, the transition wheel is located the anvil below.
Further, the conveying distance between the adjacent welding portions is equal to an integral multiple of L.
Furthermore, the predetermined area is an annular area, and each sub-area is a 1/n annular area and has different positions.
Has the advantages that: the embodiment of the invention provides a rotary ultrasonic welding device, which comprises a welding mechanism configured with n welding parts, wherein the welding mechanism comprises an anvil block and n welding assemblies, the anvil block comprises an abutting surface provided with n abutting areas, the welding assemblies comprise a welding head and an ultrasonic generating mechanism, the welding head comprises a welding area, each welding part comprises a pair of correspondingly arranged welding area and abutting area, a welded object comprises n sub-areas, the expansion diagram of each welding area is matched with the shape of one of the n sub-areas, the n welding parts are configured to perform ultrasonic welding on different sub-areas, and the welded object forms a preset area after being sequentially welded by the n welding parts, so that a complete preset shape is formed.
Drawings
FIG. 1 is a schematic view of a rotary ultrasonic apparatus of the present invention;
FIG. 2 is a schematic view of a welding mechanism in the rotary ultrasonic device;
FIG. 3 illustrates a perspective view of a rotary ultrasound device in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of the left side of FIG. 3;
fig. 5 is a schematic view of an ultrasonically welded work piece.
Description of the illustrated elements:
a frame 10; a back plate 11; through holes 111,112, 113; a main support 12; an upper plate 121; a mounting seat 122; an actuating device 123; side brackets 13, 14;
an anvil 20; a first weld 201; a second weld 202;
an abutment surface 21; a first contact region 211; a second abutment region 212;
a main shaft 22;
a first welding assembly 31; a first bonding head 311; a first ultrasonic wave generating means 312; a first bonding region 3110; the rotating shafts 314, 324;
a second weld assembly 32; a second welding head 321; a second land 3210;
a first guide roller 41; a second guide roller 42; a transition wheel 43; a deviation rectifier 51, 52;
the object to be welded 60; a predetermined area 61; a first region 611; a second region 612.
Detailed Description
The present invention provides a rotary ultrasonic welding apparatus for ultrasonically welding an object 60 to be welded in a predetermined region 61, which will be further described with reference to the accompanying drawings.
Meanwhile, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
For convenience of description, referring to fig. 5, the object 60 is a laminate of continuous sheet materials, and includes a longitudinal direction and a width direction, the longitudinal direction is an extending direction of the continuous sheet material, the width direction is a direction perpendicular to the extending direction, the width direction is also called a width direction, the longitudinal direction is a vertical direction in fig. 5, and the width direction is a horizontal direction.
The object 60 to be welded is ultrasonically welded in the predetermined area 61 by the rotary ultrasonic welding device, in the present embodiment, the object 60 to be welded is a breast pad composed of a surface layer, an absorber and a bottom layer, the ultrasonic welding device in the present embodiment needs to weld the surface layer and the bottom layer along the periphery of the absorber to form a peripheral seal portion in a substantially annular shape, that is, the predetermined area 61 in the present embodiment is an annular area corresponding to the peripheral seal portion, it is understood that the object 60 to be welded in other embodiments may be other products such as sanitary napkins, diapers and the like, and the predetermined area 61 may have other required shapes.
The predetermined area 61 may be divided into n sub-areas along a virtual straight line parallel to the length direction, if yes, the width of the predetermined area 61 is W, the length is L, and the widths of the 1 st, 2 nd to n th sub-areas are W respectively1，W2……WnThe lengths of the 1 st, 2 nd to n th sub-regions are respectively L1，L2……LnThen, there is, W = W1+W2……+WnAnd W > 60mm, L = L1=L2……=LnN ≧ 2, and in the present embodiment, n =2, the predetermined region 61 is divided into a right first region 611 and a left second region 612 along the width by a virtual straight line, and it can be understood that the length and width of the first region 611 are L1，W1The length and width of the second region 612 are L2，W2。
Referring to fig. 1-2, the present ultrasonic welding apparatus is described, wherein the ultrasonic welding apparatus comprises a frame 10 and a welding mechanism disposed on the frame 10 and configured with n welding portions, the welding mechanism comprises an anvil 20 rotatably disposed and n welding assemblies disposed along the circumference of the anvil 20.
The machine frame 10 is used for supporting the welding mechanism, and comprises a back plate 11 and a frame structure arranged on the back plate 11, the anvil block 20 is rotatably arranged on the machine frame 10, the anvil block 20 is cylindrical and comprises an abutting surface 21, the abutting surface 21 comprises n abutting areas sequentially arranged along the axial direction, it can be understood that the abutting surface 21 is the outer side surface of the anvil block 20, and the abutting areas are annular areas distributed on the abutting surface 21 along the axial direction.
The welding assembly comprises a cylindrical welding head and an ultrasonic generating mechanism connected with the welding head, the welding head comprises a welding area, the welding area and the abutting area are arranged correspondingly and at intervals, a slit is arranged between the welding area and the abutting area, each welding part comprises a pair of correspondingly arranged welding area and abutting area, and the welding part is configured to perform ultrasonic welding on one of the n sub-areas.
In the present embodiment, n =2, that is, 2 sub-regions, the number of the welding portions is also 2, and the number of the welding areas and the abutting areas are 2, it is understood that n may also be 3, 4, 5, or more, and then the number of the welding portions and the number of the welding areas and the abutting areas are 3, 4, 5, or more, but the welding portions and the abutting areas are limited by the peripheral space of the anvil 20 and when the number of the sub-regions is set to be 4 or more, the welding portions need to be welded 4 or more times to form a complete welding area, and a problem that a part of the region is repeatedly welded or a part of the region cannot be welded may occur in a plurality of welding processes, and therefore, preferably, n =2 or 3 makes the number of the sub-regions, the welding portions, and the welding areas and the abutting areas are 2 to 3.
Referring to fig. 3 to 4, in particular, the frame structure includes a main frame 12 for mounting an anvil 20 and side frames (13, 14) for mounting welded components, two of the side frames (13, 14) are used for fixing a first welded component 31 and a second welded component 32, respectively, the main frame 12 includes spaced columns, the anvil 20 includes a main shaft 22 rotating around an axis, the main frame 12 includes a pair of mounting seats 122, and two ends of the main shaft 22 are rotatably disposed on the pair of mounting seats 122, respectively.
The side brackets (13, 14) are positioned at both sides of the main bracket 12 and respectively comprise a pair of seat plates, and the welding assembly comprises rotating shafts (314, 324) which are rotatably arranged on the seat plates through the rotating shafts (314, 324).
The welding portions include a first welding portion 201 and a second welding portion 202, and the welding assemblies include a first welding assembly 31 and a second welding assembly 32 disposed around the anvil 20.
The first welding assembly 31 includes a first welding head 311 in a cylindrical shape, which is rotatably disposed, a circumferential surface of the first welding head 311 is capable of welding the object 60 to be welded, the circumferential surface is provided with a first welding area 3110, the expanded view of the first welding area 3110 is matched with the shape of the first area 611, in this embodiment, the predetermined area 61 is substantially a circular ring, the first zone 611 is a half circular ring, therefore, the first weld zone 3110 is substantially half-circular in shape in its developed view, the first ultrasonic wave generator 312 is connected to the first horn 311, the first ultrasonic wave generator 312 can generate ultrasonic waves and transmit high-frequency vibrations to the object 60 to be welded via the first horn 311 to weld the object 60 to be welded, in the present embodiment, the first ultrasonic generating mechanism 312 includes a pair of transducers respectively disposed on both sides of the first welding head 311.
The first welding head 311 is connected to the rotating shafts (314, 324), so that the first welding head 311 can be rotated by the rotating shafts (314, 324) and continuously weld the object 60 to be welded passing through the slit by the first welding zone 3110.
It is understood that the second welding assembly 32 includes a second welding head 321, the second welding head 321 includes a second welding zone 3210 having a left semicircular shape, and the object 60 is welded by the first welding portion 201 and the second welding portion 202 in sequence to form a complete circular predetermined area 61.
It is understood that the overall structure of the second welding assembly 32 is substantially the same as the first welding assembly 31 and will not be described in detail herein.
It can be understood that the first welding heads 311 and the second welding heads 321 are arranged at intervals along the circumferential direction of the anvil 20, and are sequentially arranged along the axial direction of the anvil 20, that is, the first welding heads 311 and the second welding heads 321 are arranged in a staggered manner in the circumferential direction and the axial direction of the anvil 20, so that the first welding part 201 and the second welding part 202 are located at different positions, and can weld the first region 611 and the second region 612.
The abutting surface 21 includes a first abutting region 211 and a second abutting region 212, wherein the first welding region 3110 of the first welding head 311 and the first abutting region 211 are correspondingly disposed to form a first welding portion 201, the second welding region 3210 of the second welding head 321 and the second abutting region 212 are correspondingly disposed to form a second welding portion 202 for forming a predetermined shape,
it is understood that the first welding portion 201 and the second welding portion 202 should weld only the first zone 611 and the second zone 612, respectively, and cannot weld one area repeatedly, that is, when there are n welding portions, each welding portion should weld different sub-areas, so that the object 60 to be welded forms the predetermined area 61 after being welded by n welding portions in sequence.
Further, the first welding head 311 and the second welding head 321 are separated from each other in the axial direction of the anvil 20, so as to prevent the first welding head 311 and the second welding head 321 from repeatedly welding the overlapped area of the two welding heads of the object 60 to be welded, which may damage the object 60 to be welded.
Further, referring to fig. 1, the welding mechanism further includes a first guide roller 41 disposed upstream of the first welding portion 201, a second guide roller 42 disposed downstream of the second welding portion 202, and a transition wheel 43 disposed between the first welding assembly 31 and the second welding assembly 32, wherein the object 60 to be welded enters the first welding portion 201 along a tangential direction of the anvil 20, passes through the transition wheel 43, enters the second welding portion 202 along the tangential direction again, and leaves the welding mechanism along the second guide roller 42, it can be understood that the object 60 to be welded leaves the anvil 20 after passing through the first welding head 311, i.e. the object is only adhered to the first welding head 311 and the anvil 20 at a position corresponding to the first welding portion 201, and similarly, the object is only adhered to the second welding head 321 and the anvil 20 at a position corresponding to the second welding portion 202, thereby avoiding simultaneous welding of the first welding head 311 and the second welding head 321, the welded object 60 is affected by the anvil 20, and at the same time, since the temperature of the anvil 20 and the welded object 60 rises during the welding process, the welded object 60 is separated from the anvil 20 by the transition wheel 43, not only can the anvil 20 have a certain heat dissipation space to keep the temperature constant and stabilize the temperature of the welded object 60 during two or more welding processes, but also the welded object 60 can have a longer moving path by the transition wheel 43, so that the welded object 60 has a certain relaxation space even under the influence of the temperature, and can be aligned with the position of the first zone 611 formed by the first welding part 201 when entering the second welding part 202, thereby forming a complete predetermined zone 61.
Further, a deviation rectifier (51, 52) is provided upstream of the first guide roller 41 and downstream of the second guide roller 42, respectively, so that the object to be welded 60 moves along a predetermined path, so that the first welding portion 201 welds the first zone 611 and the second welding portion 202 welds the second zone 612.
Further, the rotation axis of the transition wheel 43 is located on a vertical plane passing through the rotation axis of the anvil 20, and the rotation axis of the transition wheel 43 is parallel to the rotation axis of the anvil 20.
Further, the first guide roller 41 and the second guide roller 42 are symmetrically disposed along a vertical plane passing through the rotation axis of the anvil 20, and preferably, the first guide roller 41 and the second guide roller 42 are disposed above the anvil 20, and the transition wheel 43 is disposed below the anvil 20.
Further, the angle between the plane formed by the central axis of the first horn 311 and the axis of rotation of the anvil 20 and the vertical plane passing through the axis of rotation of the anvil 20 is 30 ° to 75 °, and preferably, the second horn 321 is arranged symmetrically to the first horn 311 along the vertical plane passing through the axis of rotation of the anvil 20.
Further, the welding mechanism further includes an adjusting device, the mounting seat 122 is movably disposed on the main support 12, the adjusting device includes an actuating device 123 connected to the mounting seat 122, the main support 12 includes an upper plate 121 horizontally disposed above the mounting seat 122, one end of the actuating device 123 is connected to the mounting seat, and the other end of the actuating device 123 is disposed on the upper plate 121, and can drive the mounting seat 122 to move along a vertical direction, so as to adjust a distance between the mounting seat 122 and the upper plate 121, in the present embodiment, the first welding head 311 and the second welding head 321 are disposed below a side of the anvil 20, when the mounting seat 122 moves up and down, the anvil 20 disposed on the main shaft 22 moves up and down, so as to adjust a gap width between the first welding portion 201 and the second welding portion 202, on one hand, by adjusting a gap between the first welding portion 201 and the second welding portion 202, to adapt to welding of objects 60 to be welded with different thicknesses, on the other hand, when the welding mechanism is in operation and the material winding occurs at the first welding part 201 or the second welding part 202, the gap width of the first welding part 201 or the second welding part 202 is increased by lifting the mounting base, so as to facilitate taking out and cleaning the material winding, in this embodiment, the actuating device 123 is a cylinder.
Further, the adjusting device further includes a guiding device disposed between the mounting seat 122 and the main support 12, so that the mounting seat 122 can stably move along a direction defined by the guiding device, in this embodiment, the guiding device includes a guide block disposed on the mounting seat 122 and a guide groove disposed on the main support 12 and matched with the guide block.
Further, a transmission device is arranged between the main shaft 22 and the rotating shafts (314, 324), so that the anvil 20 connected with the main shaft 22 and the first welding head 311 and the second welding head 321 connected with the rotating shafts (314, 324) move synchronously, the welded object 60 entering the slit is welded by the first welding head 311 and the second welding head 321, and simultaneously, the welded object is driven by the first welding head 311, the second welding head 321 and the anvil 20 to move continuously in the downstream direction, and the welded object 60 is continuously welded.
Furthermore, the back plate 11 is provided with through holes (111, 112, 113) corresponding to the main shaft 22 and the rotating shafts (314, 324), so that the frame structure can be easily fixed on the back plate 11, and the main shaft 22 and the rotating shafts (314, 324) have installation spaces.
It can be understood that, in the present embodiment, the object to be welded 60 is conveyed from the right side to the first welded part 201 via the deviation rectifier (51, 52) and the first guide roller 41, the object 60 to be welded is formed into the form of the first zone 611 by the ultrasonic heating action of the first welding head 311, is conveyed to the second welding part 202 via the transition wheel 43, the welded object 60 is formed into the form of the second zone 612 by the ultrasonic heating action of the second welding head 321 from the second welding zone 3210, it will be appreciated that, given that the transport distance between the first weld 201 and the second weld 202 should be equal to an integer multiple of L, so that the second zone 612 is formed in exactly the same position as the first zone 611, thus forming a complete, predetermined configuration, which, in this way, ultrasonic welding can be continuously performed, and meanwhile, the device is relatively simple in structure and easy to adjust.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A rotary ultrasonic welding apparatus for ultrasonically welding an object to be welded in a predetermined region, comprising,
the welding mechanism is provided with n welding parts, and comprises an anvil block which is arranged in a rotating mode and n welding assemblies which are arranged along the circumferential direction of the anvil block:
the anvil block comprises abutting surfaces which are sequentially provided with n abutting areas along the axial direction, and the welding assembly comprises a cylindrical welding head and an ultrasonic generating mechanism connected with the welding head, wherein the welding head is arranged corresponding to the abutting areas;
the welding head comprises welding areas positioned on the circumferential surface of the welding head, the welding areas and the abutting areas are correspondingly arranged at intervals, each welding part comprises a pair of welding areas and abutting areas which are correspondingly arranged, the object to be welded comprises n sub-areas, the expansion diagram of each welding area is matched with the shape of one of the n sub-areas, the n welding parts are configured to carry out ultrasonic welding on different sub-areas, and the object to be welded forms a preset area after sequentially passing through the n welding parts;
wherein n is more than or equal to 2, and the width of the preset area is more than 60 mm.
2. The rotary ultrasonic welding apparatus of claim 1, wherein the predetermined area is divided into n sub-areas by a virtual straight line parallel to the longitudinal direction, and if provided, the predetermined area has a width W and a length L, and the 1 st and 2 nd sub-areas 2 … … n have widths W, respectively1，W2……WnThe length of the 1 st, 2 … … n sub-regions is L1，L2……LnThen, there is, W = W1+W2……+Wn，L=L1=L2……=Ln。
3. The rotary ultrasonic welding apparatus of claim 1, wherein n =2, and wherein the welding mechanism comprises a first welding assembly and a second welding assembly, the first welding assembly comprising a first horn and the second welding assembly comprising a second horn, the first horn and the second horn being circumferentially spaced apart and axially spaced apart along the anvil.
4. A rotary ultrasonic welding apparatus according to claim 3 wherein the angle between the plane formed by the central axis of the first horn and the axis of rotation of the anvil and a vertical plane passing through the axis of rotation of the anvil is from 30 ° to 75 °, and the second horn is arranged symmetrically to the first horn along the vertical plane passing through the axis of rotation of the anvil.
5. The rotary ultrasonic welding apparatus of claim 4 wherein the first and second horn are disposed laterally below the anvil, and wherein the welding mechanism further comprises means for adjusting the position of the anvil in a vertical direction.
6. The rotary ultrasonic welding apparatus of claim 5 wherein the welding mechanism further comprises a transition wheel disposed on a path of movement of the work piece from the first weld to the second weld for separating the work piece from the anvil.
7. The rotary ultrasonic welding apparatus of claim 6 wherein the object to be welded is configured to enter the first weld portion tangentially of the anvil and enter the second weld portion tangentially after passing through the transition wheel.
8. The rotary ultrasonic welding apparatus of claim 7 wherein the welding mechanism further comprises a first guide roller disposed upstream of the first weld and a second guide roller disposed downstream of the second weld, the first and second guide rollers being symmetrically disposed along a vertical plane passing through the axis of rotation of the anvil, the first and second guide rollers being disposed above the anvil and the transition wheel being disposed below the anvil.
9. The rotary ultrasonic welding apparatus of claim 2, wherein the feed distance between adjacent welds is equal to an integer multiple of L.
10. The rotary ultrasonic welding apparatus of claim 1, wherein the predetermined region is an annular region, and each of the sub-regions is a 1/n annular region and is located at different positions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210153946.6A CN114536775A (en) | 2022-02-20 | 2022-02-20 | Rotary ultrasonic welding device |
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| CN101001742A (en) * | 2004-08-10 | 2007-07-18 | 泰克斯蒂声学公司 | Method and device for ultrasound processing of a material web |
| CN207900449U (en) * | 2018-02-07 | 2018-09-25 | 上海幸义超声技术有限公司 | Ultrasonic roll welding soldering tip and comprising its ultrasonic wave roll welder |
| CN215131677U (en) * | 2021-06-21 | 2021-12-14 | 黄山富田精工智造股份有限公司 | Manufacturing device of composite sheet |
-
2022
- 2022-02-20 CN CN202210153946.6A patent/CN114536775A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001742A (en) * | 2004-08-10 | 2007-07-18 | 泰克斯蒂声学公司 | Method and device for ultrasound processing of a material web |
| CN207900449U (en) * | 2018-02-07 | 2018-09-25 | 上海幸义超声技术有限公司 | Ultrasonic roll welding soldering tip and comprising its ultrasonic wave roll welder |
| CN215131677U (en) * | 2021-06-21 | 2021-12-14 | 黄山富田精工智造股份有限公司 | Manufacturing device of composite sheet |
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