CN214569413U

CN214569413U - Ultrasonic indentation device and film rewinding machine

Info

Publication number: CN214569413U
Application number: CN202120691713.2U
Authority: CN
Inventors: 王东林; 贾奋强
Original assignee: Foshan Rijing Kechuang Packaging Material Co ltd
Current assignee: Foshan Rijing Kechuang Packaging Material Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-11-02
Anticipated expiration: 2031-04-06

Abstract

The application discloses ultrasonic indentation device and film rewinding machine, ultrasonic indentation device includes: the lower end of the ultrasonic generator is provided with a die head; the pressing wheel is arranged below the die head and can reciprocate relative to the die head to form an indentation station with the die head; the pressing wheel can be rotatably arranged, and the circumferential surface of the pressing wheel is provided with a boss structure so as to form continuous dents on the surface of the material to be indented when the material to be indented continuously passes through the indentation station. The film rewinding machine comprises the ultrasonic indentation device. The application of ultrasonic wave indentation device and film rewinding machine can form effectual indent structure to the raw and other materials of wrapping bag to effectively solve current wrapping bag and be difficult for tearing and the problem of opening unevenness, make the wrapping bag open the bag more laborsaving, clean and tidy.

Description

Ultrasonic indentation device and film rewinding machine

Technical Field

The utility model belongs to the technical field of film and wrapping bag production and processing, in particular to ultrasonic indentation device and film rewinding machine.

Background

The packaging bag is visible everywhere in daily life and production, for example, food packaging is the most common application category, and daily use objects are all over men, women, old and young, so to speak, the packaging bag is a square surface penetrating into the life of people. For the packaging bag, not only the packaging strength is ensured, but also whether the bag is labor-saving and tidy or not is considered, and particularly, the requirements on labor saving and tidiness are more urgent for the old and children who have relatively poor interest in movement or other weak groups.

Present wrapping bag is the plastics material mostly, paper or composite film material, and is comparatively hard when tearing, and because tear mouthful department stress distribution is uneven, the skew straight line extremely easily, thereby destroys the bag body structure, causes the content outflow, unrestrained, for example snacks are unrestrained one place, the clothing is made dirty to the flavouring agent, the sack unevenness also does not do benefit to the later stage storage simultaneously, perhaps after deviating the straight line, the wrapping bag is failed to tear in the department of tearing, need tear the operation many times.

In order to solve the technical problem, the applicant improves the structure of the packaging bag, and the packaging bag is provided with a dent structure, but the existing indentation equipment in other fields usually uses a mechanical stamping technology due to different processed products, and the equipment can not achieve the effect by directly applying the equipment on light and thin materials of the packaging bag.

Accordingly, the prior art is in need of improvement and development.

Disclosure of Invention

An object of the embodiment of this application is to provide an ultrasonic wave indentation device and film rewinding machine, is applied to the production line of wrapping bag, can form effectual dent structure to the raw and other materials of wrapping bag to effectively solve current wrapping bag and be difficult for tearing and the problem of opening unevenness, make the wrapping bag open the bag more laborsaving, clean and tidy.

In order to solve the technical problem, in one aspect, an ultrasonic indentation apparatus provided in an embodiment of the present application includes:

the lower end of the ultrasonic generator is provided with a die head;

the pressing wheel is arranged below the die head and can reciprocate relative to the die head to form an indentation station with the die head;

the pressing wheel can be rotatably arranged, and the circumferential surface of the pressing wheel is provided with a boss structure so as to form continuous dents on the surface of the material to be indented when the material to be indented continuously passes through the indentation station.

Furthermore, the boss structure comprises at least two bosses which are arranged on the circumferential surface of the pressing wheel in parallel.

Furthermore, the section of the boss is an equilateral triangle with the side length of 1.2 mm.

Further, a pressing table is arranged at the bottom of the die head, and the indentation station is formed between the pressing table and the boss structure.

Furthermore, the pinch roller is connected with an adjusting assembly, the adjusting assembly comprises a fixing plate and a sliding plate movably arranged below the fixing plate, a first adjusting bolt and a second adjusting bolt are arranged between the fixing plate and the sliding plate, the screw end of the first adjusting bolt penetrates through the fixing plate and is connected with the sliding plate to rotate to drive the sliding plate to perform reciprocating motion, the screw end of the second adjusting bolt is connected with the fixing plate and penetrates through the fixing plate to tightly abut against the sliding plate, the fixing plate is opposite to the ultrasonic generator and is fixedly arranged, and the pinch roller is connected with the sliding plate.

Furthermore, the adjusting assembly further comprises a limiting part, the limiting part is provided with a limiting groove, and the sliding plate card is inserted into the limiting groove and can reciprocate along the limiting groove.

Further, this ultrasonic wave indentation device still includes the installing support, the installing support has mutually perpendicular's top surface and side, the fixed plate with the top surface of installing support is connected, the fixed plate extends and is equipped with the installation department, supersonic generator with the installation department is connected, the locating part with the side of installing support is connected.

Further, the limiting member is of an L-shaped structure, and an end portion of any side wall of the limiting member is connected to the mounting bracket, so that the limiting groove is formed between the other side wall of the limiting member and the side surface of the mounting bracket.

Furthermore, the number of the second adjusting bolts is two, and the two second adjusting bolts are respectively arranged on two sides of the first adjusting bolt.

On the other hand, the film rewinding machine that this application embodiment provided, including unwinding mechanism, winding mechanism and the aforesaid arbitrary ultrasonic wave indentation device, ultrasonic wave indentation device locates between unwinding mechanism and the winding mechanism to make the film pass through in succession the indentation station of ultrasonic wave indentation device.

The utility model provides an ultrasonic wave indentation device and film rewinding machine, through adjusting the pinch roller and adjusting the clearance of indentation station, in order to treat the indentation material and exert pressure, send the ultrasonic wave through supersonic generator, the energy is transmitted to treating the indentation material through the mould head, make and treat that the indentation material generates heat in the twinkling of an eye and is suppressed thinly, when treating the indentation material continuous through the indentation station, surface formation continuous dent treating the indentation material, the thickness of the relative material main part of thickness that makes dent department is little, easily tear, when the wrapping bag adopts this material, when tearing open the bag, can follow the straight line orbit that the dent formed and tear, make the opening of wrapping bag level and smooth, can not destroy bag structure, do benefit to the later stage storage, make the wrapping bag open more laborsaving, neat.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic indentation apparatus according to an embodiment of the present application.

Fig. 2 is another schematic structural diagram of an ultrasonic indentation apparatus according to an embodiment of the present disclosure.

Fig. 3 is a reference diagram illustrating an operation state of an ultrasonic indentation apparatus according to an embodiment of the present disclosure.

Fig. 4 is an enlarged view of the ultrasonic indentation apparatus shown in fig. 1 at K.

Fig. 5 is a schematic structural diagram of a pressing wheel of an ultrasonic indentation apparatus according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a mounting bracket of an ultrasonic indentation apparatus according to an embodiment of the present disclosure.

Fig. 7 is a schematic cross-sectional view of a dent portion of an embodiment of a packaging bag processed by an ultrasonic indentation apparatus according to an embodiment of the present disclosure.

Description of reference numerals: 100. an ultrasonic generator; 110. a die head; 111. pressing the table; 200. a pinch roller; 201. a boss structure; 210. a boss; 300. an indentation station; 410. a fixing plate; 420. a slide plate; 430. a first adjusting bolt; 440. a second adjusting bolt; 450. a limiting member; 500. mounting a bracket; 500a, a top surface; 500b, side faces; 101. an ultrasonic indentation device; 102. an unwinding mechanism; 103. a winding mechanism; 600. and (5) pressing the material to be pressed.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element 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. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

As shown in fig. 1 and 2, the utility model relates to an ultrasonic indentation device, include:

the ultrasonic generator 100, the lower end of the ultrasonic generator 100 is provided with a die head 110;

the pressing wheel 200 is arranged below the die head 110, and can reciprocate relative to the die head 110 to form an indentation station 300 with the die head 110;

the pressing wheel 200 is rotatably disposed, and a circumferential surface thereof is provided with a boss structure 201 to form continuous dents on the surface of the material 600 to be indented as the material 600 to be indented continuously passes through the indentation station 300.

As shown in fig. 3, in particular, the material 600 to be creased may be a raw material for producing a packaging bag, such as a plastic material, a paper material or a composite film material such as a film, and in particular, the ultrasonic creasing device may be installed in an existing processing equipment, so as to organically integrate a creasing process of the ultrasonic creasing device into a production line of products such as packaging bags, and the material 600 to be creased is conveyed by the power of the existing processing equipment, so that the material 600 to be creased continuously passes through the creasing station 300. Specifically, the ultrasonic indentation device is installed in a (film) rewinding machine, specifically between an unwinding mechanism and a winding mechanism. Specifically, the ultrasonic generator 100 may be any suitable ultrasonic generator type known in the art. Through this ultrasonic wave indentation device, can form effectual indent to the material that thickness is 10~80 mu m.

In the specific application, the gap of the indentation station 300 (i.e. the gap between the die head 110 and the pressure roller 200) is adjusted by adjusting the pressure roller 200, so that the gap of the indentation station 300 is smaller than the thickness of the material 600 to be indented, pressure is applied to the material 600 to be indented, by using the elasticity of the material 600 to be indented, when the material 600 to be indented is deformed and enters the indentation station 300, ultrasonic waves are emitted by the ultrasonic generator 100, energy is transmitted to the material 600 to be indented through the die head 110, so that the material 600 to be indented instantly heats, and the part located on the boss structure 201 is thinned and shaped, when the material 600 to be indented continuously passes through the indentation station 300, a continuous and permanent indentation is formed on the surface of the material 600 to be indented, so that the thickness of the indentation part is small relative to the thickness of the material body, and the material is easy to tear, when the packaging bag is made of the material, the bag body can be torn along the linear track formed by the indentation, make the opening of wrapping bag level and smooth, can not destroy bag structure, do benefit to the later stage storage for the wrapping bag is opened the bag more laborsaving, clean and tidy.

When the indented material or the package prepared by using the indented material is torn specifically, when the tearing force is increased suddenly or the tearing direction is changed suddenly, the tearing direction deviates from the dent and is finally torn, and even the package cannot be torn successfully. In order to further improve the above problem, the material 600 to be indented may be indented for multiple times to form at least two indentations on the surface of the material, and then in a specific application, when the tearing force is suddenly increased or the tearing direction is suddenly changed to cause the tearing direction to deviate from the linear track of the current indentation, the material may enter into an adjacent indentation, and finally, the material may be torn smoothly and completely along the linear track of the indentation, and the opening smoothness of the material or the packaging bag may not be affected as a whole, so that the success rate of tearing the material or the packaging bag smoothly tends to be hundreds under a wider use condition, and further, the bag opening of the packaging bag is labor-saving and tidy. However, this operation is difficult to control the spacing between adjacent dimples and significantly affects the production efficiency.

In some preferred embodiments, as shown in FIG. 5, the protrusion structure 201 comprises at least two protrusions 210, and the at least two protrusions 210 are juxtaposed on the circumferential surface of the pressing wheel 200. Therefore, when the material 600 to be creased passes through the creasing station 300 once, at least two dents can be formed on the surface of the material, and the distance between every two adjacent dents is consistent, so that the effect of smoothly tearing the material or the packaging bag is ensured. Specifically, when the boss structure 201 includes at least two bosses 210, the at least two bosses 210 may be disposed continuously or at a certain distance.

In some preferred embodiments, the distance between at least two of the bosses 210 is less than the root width w of the bosses 210. Therefore, when the two-side bag body of the packaging bag adopts the indented material, the indents on the two-side bag body of the packaging bag can be arranged in a staggered manner, and when the packaging bag is opened, the packaging bag can be opened along a straight track formed by the intersection of any one of the indents on the first-side bag body and the corresponding indents on the second-side bag body, as shown in fig. 7 in particular, wherein m is the two-side bag body of the packaging bag, and n is the indents. Specifically, the joint surface between the boss 210 and the body of the pressing wheel 200 is the root of the boss 210, and the width w of the root of the boss 210 is the width of the joint surface. Specifically, when the packaging bag is formed by folding the indented material in half, the indents on the two bag bodies of the packaging bag can be completely symmetrically arranged.

Specifically, the boss 210 may have a rectangular cross section or a trapezoidal cross section. In some preferred embodiments, the cross-section of the boss 210 is an equilateral triangle with a side of 1.2 mm. Therefore, through adjusting the gap of the indentation station 300, the surface of the material 600 to be indented can form effective indentations, so that the tearing effectiveness is ensured, and the integral attractiveness of the packaging bag cannot be influenced due to the existence of the indentations.

In some preferred embodiments, as shown in fig. 4, the bottom of the die head 110 is provided with a pressing platform, and the pressing platform and the boss structure 201 form the indentation station 300 therebetween. Therefore, the ultrasonic energy of the die head 110 is concentrated together through the pressing table, effective indentation can be quickly formed at the moment when the material 600 to be indented passes through the indentation station 300 after being conveyed, so that the phenomenon that the material 600 to be indented is compacted by the boss structure 201 and is thinned and shaped fails is avoided, the material is scratched when the material 600 to be indented moves through the indentation station 300, and the indentation process and the production line of the material or the packaging bag can be well integrated. Specifically, the pressing platform may be a trapezoidal platform structure, and preferably, the pressing platform is a rectangular structure, specifically, a rectangular body with a length of 10mm, a width of 10mm, and a height of 1 mm.

As shown in fig. 1 and 2, in some preferred embodiments, the pressure roller 200 is connected to an adjusting assembly, the adjusting assembly includes a fixing plate 410 and a sliding plate 420 movably disposed below the fixing plate 410, a first adjusting bolt 430 and a second adjusting bolt 440 are disposed between the fixing plate 410 and the sliding plate 420, a screw end of the first adjusting bolt 430 passes through the fixing plate 410 and is connected to the sliding plate 420 to rotate to drive the sliding plate 420 to reciprocate, a screw end of the second adjusting bolt 440 is connected to the fixing plate 410 and passes through the fixing plate 410 to abut against the sliding plate 420, the fixing plate 410 is fixedly disposed relative to the ultrasonic generator 100, and the pressure roller 200 is connected to the sliding plate 420. In the concrete application, firstly, second adjusting bolt 440 is unscrewed, and first adjusting bolt 430 is rotated to drive sliding plate 420 to move, so that the gap of indentation station 300 is finely adjusted, pressing wheel 200 is limited in the direction of moving away from fixing plate 410, then second adjusting bolt is screwed to abut against sliding plate 420, and pressing wheel 200 is limited in the direction of moving close to fixing plate 410 and is fixed. Specifically, the state of the press wheel 200 when it is closed toward the die head 110 can be referred to as fig. 1, and the state of the press wheel 200 when it is away from the die head 110 can be referred to as fig. 2.

Specifically, the sliding plate 420 is provided with a bearing structure, the bearing structure is fixedly connected with a connecting shaft, and the pressing wheel 200 is fixedly arranged at a free end of the connecting shaft. As the material 600 to be creased continues to pass through the creasing station 300, the puck 200 is rotated along the surface of the material 600 to be creased and eventually forms a dent.

In some preferred embodiments, two second adjusting bolts 440 are provided and are respectively provided at both sides of the first adjusting bolt 430.

In specific application, when the first adjusting bolt 430 is rotated for adjustment, the sliding plate 420 can be held by hand, so that the sliding plate 420 is prevented from synchronously rotating in the rotating direction of the first bolt to affect adjustment, but an error phenomenon that the pinch roller 200 and the die head 110 have angular deviation after adjustment is inevitable. In some preferred embodiments, the adjusting assembly further includes a limiting member 450, and the limiting member 450 is provided with a limiting slot, and the sliding plate 420 is inserted into the limiting slot and can reciprocate along the limiting slot. In a more preferred embodiment, two stoppers 450 are provided, and are respectively provided on both sides of the slide plate 420 in the direction of the distance movement of the slide plate 420.

In some preferred embodiments, the limiting member 450 has an L-shaped structure, and an end of any one sidewall of the limiting member 450 is connected to the mounting bracket 500, so that the limiting groove is formed between the other sidewall of the limiting member 450 and the side surface 500b of the mounting bracket 500.

As shown in fig. 1, 2 and 6, in some preferred embodiments, the ultrasonic indentation apparatus further includes a mounting bracket 500, the mounting bracket 500 has a top surface 500a and a side surface 500b perpendicular to each other, the fixing plate 410 is connected to the top surface 500a of the mounting bracket 500, the fixing plate 410 extends to form a mounting portion, the ultrasonic generator 100 is connected to the mounting portion, and the limiting member 450 is connected to the side surface 500b of the mounting bracket 500. In specific application, the ultrasonic indentation device is connected with processing equipment such as a film rewinding machine and the like through the mounting bracket 500, a general film passes through the processing equipment in a state of horizontal extension of an indentation material 600, the mounting bracket 500 is used for mounting, so that the die head 110 of the ultrasonic generator 100 is positioned above the indentation material 600, the pressing wheel 200 presses the indentation material 600 in the lower direction of the indentation material 600, and an indentation can be formed on the lower surface of the indentation material 600.

On the other hand, the film rewinding machine provided by the embodiment of the present application includes an unwinding mechanism 102, a winding mechanism 103, and any one of the ultrasonic creasing devices 101, where the ultrasonic creasing device 101 is disposed between the unwinding mechanism 102 and the winding mechanism 103, so that a film continuously passes through a creasing station 300 of the ultrasonic creasing device 101.

Referring to fig. 3, in particular, the unwinding mechanism 102 and the winding mechanism 103 may adopt the prior art means, such as the structure of the same mechanism of the rewinding machine in the prior art.

The utility model provides an ultrasonic wave indentation device and film rewinding machine, through adjusting pinch roller 200 and adjust indentation station 300's clearance, in order to treat indentation material 600 applied pressure, send out the ultrasonic wave through supersonic generator 100, the energy transmits to treating indentation material 600 through mould head 110, make and treat that indentation material 600 generates heat in the twinkling of an eye and is suppressed thinly, when treating indentation material 600 continuous through indentation station 300, form continuous dent on the surface of treating indentation material 600, make the thickness of the relative material main part of thickness of dent department little, easily tear, when the wrapping bag adopts this material, when tearing open the bag, can follow the straight line track that the dent formed and tear, make the opening of wrapping bag level and smooth, can not destroy bag body structure, do benefit to the later stage storage, make the wrapping bag open the bag more laborsaving, clean and tidy. By arranging at least two bosses 210 on the circumferential surface of the pressing wheel 200 in parallel, the success rate of the smooth tearing of the material or the packaging bag tends to be hundreds under wider use conditions, and the labor-saving and tidy bag opening of the packaging bag is further ensured. Through this ultrasonic wave indentation device, can form effectual indent to the material that thickness is 10~80 mu m.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. An ultrasonic indentation apparatus, comprising:

the ultrasonic generator (100), the lower end of the ultrasonic generator (100) is provided with a die head (110);

the pressing wheel (200) is arranged below the die head (110) and can reciprocate relative to the die head (110) to form an indentation station (300) with the die head (110);

the pressing wheel (200) is rotatably arranged, and the circumferential surface of the pressing wheel is provided with a boss structure (201) so as to form continuous dents on the surface of the material (600) to be indented when the material (600) to be indented continuously passes through the indentation station (300).

2. The ultrasonic indentation apparatus according to claim 1, characterized in that the raised structure (201) comprises at least two raised structures (210), the at least two raised structures (210) being juxtaposed on the circumferential surface of the pressure wheel (200).

3. The ultrasonic indentation apparatus according to claim 2, characterized in that the cross-section of the boss (210) is an equilateral triangle with a side length of 1.2 mm.

4. The ultrasonic indentation apparatus according to claim 1, characterized in that a pressing table (111) is provided at the bottom of the die head (110), the indentation station (300) being formed between the pressing table (111) and the boss structure (201).

5. The ultrasonic indentation device according to claim 1, characterized in that an adjustment assembly is connected to the pressure wheel (200), the adjusting component comprises a fixed plate (410) and a sliding plate (420) movably arranged below the fixed plate (410), a first adjusting bolt (430) and a second adjusting bolt (440) are arranged between the fixed plate (410) and the sliding plate (420), the screw end of the first adjusting bolt (430) passes through the fixing plate (410) and is connected with the sliding plate (420), so as to rotate and drive the sliding plate (420) to reciprocate, the screw end of the second adjusting bolt (440) is connected with the fixed plate (410), and the pressing wheel passes through the fixing plate (410) and abuts against the sliding plate (420), the fixing plate (410) is fixedly arranged relative to the ultrasonic generator (100), and the pressing wheel (200) is connected with the sliding plate (420).

6. The ultrasonic indentation apparatus according to claim 5, wherein the adjustment assembly further comprises a limiting member (450), wherein the limiting member (450) is provided with a limiting slot, and the sliding plate (420) is inserted into the limiting slot and can reciprocate along the limiting slot.

7. The ultrasonic indentation apparatus according to claim 6, further comprising a mounting bracket (500), wherein the mounting bracket (500) has a top surface (500 a) and a side surface (500 b) perpendicular to each other, the fixing plate (410) is connected to the top surface (500 a) of the mounting bracket (500), the fixing plate (410) extends to form a mounting portion, the ultrasonic generator (100) is connected to the mounting portion, and the stopper (450) is connected to the side surface (500 b) of the mounting bracket (500).

8. The ultrasonic indentation apparatus according to claim 7, wherein the retaining member (450) has an L-shaped structure, and an end of any one sidewall of the retaining member (450) is connected to the mounting bracket (500) such that the retaining groove is formed between the other sidewall of the retaining member (450) and the side surface (500 b) of the mounting bracket (500).

9. The ultrasonic indentation apparatus according to claim 5, characterized in that the second adjustment bolt (440) is provided in two and is provided on each side of the first adjustment bolt (430).

10. A film rewinding machine, characterized by comprising an unwinding mechanism (102), a winding mechanism (103) and an ultrasonic creasing device (101) according to any one of claims 1 to 9, said ultrasonic creasing device (101) being arranged between said unwinding mechanism (102) and winding mechanism (103) so as to allow the film to pass continuously through a creasing station (300) of said ultrasonic creasing device (101).