Film laminating machine
By setting up auxiliary devices on the coating machine, using connecting rod components and driving devices to achieve uniform clamping and fixing of the film, the problems of resistance and edge curling during cutting are solved, and the efficiency and product quality of the coating machine are improved.
Patent Information
- Application Number
- CN202420499259.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing coating machines have resistance and knife wear problems during the film cutting process, resulting in uneven edges and affecting product quality and production efficiency.
A coating machine auxiliary device is designed, including a base, connecting rod assembly and a driving device. The clamping part is clamped and separated by a dual-axis drive device, and uniform clamping and fixing of the film is achieved by using magnetic suction and friction parts. Reduce waste film accumulation and edge curl caused by lateral movement of the cutter.
It effectively reduces resistance during the cutting process, prevents knife wear, improves the flatness of the cutting edge, improves the yield rate and product quality of the coating machine, and reduces production costs.
Smart Images
Figure CN222291011U_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of laminating machine equipment, and in particular relates to a laminating machine. Background Art
[0002] In the laminating process of the float glass industry, the use of laminating machines is of great significance to ensure product quality and production efficiency. At present, most laminating machines adopt the film roll supply method, that is, the film roll is placed in the film supply device of the laminating machine, the film is pulled out from the film roll through the film supply device, and then the laminating and cutting operations are performed. However, there are some problems in the film pulling and cutting process of the existing laminating machines. First, due to the winding method of the film roll, the pulled film may have certain bends or wrinkles, which will affect the flatness and quality of the lamination. Secondly, during the cutting process, due to the movement of the cutter and the accumulation of waste film, the cutter may be subject to additional resistance, resulting in wear and uneven cutting edges.
[0003] In order to solve these problems, some existing technical solutions have been proposed. For example, some laminating machines reduce the bending or wrinkling of the film by increasing the stretching force or adjusting the placement of the film roll when pulling out the film. However, these methods cannot completely eliminate the bending or wrinkling of the film and may require increased production costs. In addition, there are some technical solutions that attempt to improve the flatness of the cutting edge by improving the design of the cutting mechanism or the cutter. For example, some laminating machines use a high-speed rotating cutter for cutting to reduce the accumulation of waste film and the wear of the cutter. However, these methods may not completely solve the problem of uneven cutting edges and may require increased production costs.
[0004] Specifically, for example, in the prior art CN 211764070 U, one or more pressing wheels are respectively arranged on both sides of the cutter for cutting the film, so as to press the film tightly when the cutter is cutting, thereby preventing the edge of the film from being lifted up and causing the film to be not fitted or damaged. However, this technology does not achieve the effect of reducing cutting resistance.
[0005] Therefore, it is necessary to develop an improved laminating machine auxiliary device to further reduce the resistance of the film during the cutting process, further avoid the problem of waste film accumulation and severe wear of the cutter due to lateral movement of the cutter, and at the same time make the cutting force uniform when the cutter is cutting, thereby reducing the warping of the film edge, thereby improving the yield rate of the laminating machine, improving product quality and reducing production costs. Utility Model Content
[0006] A technical problem to be solved by the present disclosure is to solve the resistance of the film during the cutting process, avoid the problem of waste film accumulation and wear of the cutter caused by the lateral movement of the cutter during the film cutting process, and at the same time solve the problem of edge film warping caused by uneven cutting force when the cutter is cutting, which reduces the yield and improves the efficiency of the laminating machine.
[0007] To solve the above technical problems, an embodiment of the present disclosure provides a laminating machine, which includes a main body and an auxiliary device arranged on at least one of the two sides of the main body, the auxiliary device includes a base, a connecting rod assembly, two relatively arranged clamping parts and a driving device, the two ends of the connecting rod assembly are rotatably connected to the base and the clamping part, respectively, the driving device is arranged in the base and connected to the connecting rod assembly, and the connecting rod assembly is configured to move under the drive of the driving device to clamp and separate the two clamping parts.
[0008] In some embodiments, the driving device is a dual-axis driving device, and the connecting rod assembly includes a first connecting rod assembly and a second connecting rod assembly, each of the first connecting rod assembly and the second connecting rod assembly includes a plurality of connecting rods rotatably connected end to end.
[0009] In some embodiments, based on the above embodiments, the dual-axis drive device includes a dual drive shaft, each clamping portion includes a clamping plate and a connecting end arranged on one side of the clamping plate, and the connecting end is rotatably connected to the connecting rod assembly through a first connecting shaft; each of the first connecting rod assembly and the second connecting rod assembly includes a first connecting rod, a second connecting rod and a second connecting shaft connecting the first connecting rod and the second connecting rod, one end of the first connecting rod is rotatably connected to the first connecting shaft, and the other end is rotatably connected to the second connecting shaft, one end of the second connecting rod is rotatably connected to the second connecting shaft, and the other end of the second connecting rod is connected to the corresponding drive shaft in the corresponding dual drive shafts.
[0010] In some embodiments, the clamping plate includes a clamping surface and a connecting surface arranged on the opposite side of the clamping surface, the connecting end is arranged on the connecting surface, and the clamping surface includes a magnetic attraction portion arranged on the outer surface of the clamping surface.
[0011] In some embodiments, a friction portion is also provided above the clamping surface, and the magnetic portion and the friction portion are simultaneously provided on the outer surface of the clamping surface, the magnetic portion includes one or more sheet-like magnetic parts, which are distributed in the middle of the clamping surface, and the friction portion includes one or more sheet-like friction parts, which are distributed along the outer edge of the clamping surface; or, the magnetic parts are distributed along the outer edge of the clamping surface, and the friction parts are located in the middle of the clamping surface.
[0012] In some embodiments, the magnetic attraction member includes an electromagnet.
[0013] In some embodiments, the main body includes a roller table, a laminating group, and a cutting group;
[0014] The roller conveyor comprises a first side edge, a second side edge, and a plurality of parallel transmission rollers connected between the first side edge and the second side edge;
[0015] The laminating group is used to laminarize the product conveyed by the transmission roller and comprises a film shaft and a protective film wound on the film shaft, wherein the film shaft is arranged above the transmission roller across the first side edge and the second side edge;
[0016] The cutting group is arranged above the roller and is used to cut the coated product. The cutting group includes an outer shell, a sliding track arranged in the outer shell and a cutter assembly that can slide along the extension direction of the sliding track. The two ends of the outer shell span the first side and the second side. The cutter assembly includes a knife holder with one end connected to the sliding track and a cutter fixed on the knife holder.
[0017] In some embodiments, the film shaft includes a first film shaft and a second film shaft arranged corresponding to the first film shaft, and the first film shaft and the second film shaft are both wound with a protective film.
[0018] In some embodiments, the first film shaft and the second film shaft rotate synchronously, and the product passes between the first film shaft and the second film shaft when passing through the film shaft to be coated.
[0019] In some embodiments, based on the above embodiments, an auxiliary device is arranged between the laminating group and the cutting group.
[0020] The beneficial effects of the utility model are:
[0021] The utility model discloses a laminating machine that is provided with auxiliary devices on both sides of the main body, the auxiliary devices include a clamping part that can clamp the product, and the auxiliary devices can fix the product when the laminating machine cuts the product, thereby solving the problem that the waste film on the product is accumulated due to the lateral movement of the laminating machine's cutter, causing the cutter to wear seriously, and the edge film on the product is warped when the cutter cuts, thereby increasing the yield rate of the laminating machine's production. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1a A schematic diagram of a laminating machine provided in some embodiments of the present disclosure is shown, showing the basic structure of the laminating machine provided in some embodiments of the present disclosure, and the location of the auxiliary device;
[0024] Figure 1b Shows Figure 1aA partial enlarged schematic diagram of a laminating machine shown in ;
[0025] Figure 2 A schematic diagram of a laminating machine provided in some embodiments of the present disclosure is shown, which is a cross-sectional view in the horizontal direction of a roller table, showing the relative positions of a cutting group and a driving device in the laminating machine provided in some embodiments of the present disclosure;
[0026] Figure 3a A first state diagram of the auxiliary device provided in some embodiments of the present disclosure is shown, showing a first state of a clamping portion in the auxiliary device in the laminating machine provided in some embodiments of the present disclosure (i.e., a clamping plate of the clamping portion is in an open state);
[0027] Figure 3b A second state diagram of the auxiliary device provided in some embodiments of the present disclosure is shown, showing the second state of the clamping part in the auxiliary device in the laminating machine provided in some embodiments of the present disclosure (ie, the state in which the clamping part's clamping plates are closed).
[0028] Description of reference numerals:
[0029] 1. Roller table; 2. Drive roller; 3. Bearing with seat; 4. Protective film; 5. Product; 6. Film shaft; 7. Knife holder; 8. Cutter; 9. Clamp; 10. Driving device; 11. Double driving shaft; 12. First connecting rod; 13. Housing; 14. Second connecting rod; 15. Connecting end; 16. First connecting shaft; 17. Second connecting shaft; 18. Base. DETAILED DESCRIPTION
[0030] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
[0031] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components described in these embodiments should be interpreted as merely exemplary, rather than as a limitation.
[0032] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0033] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.
[0034] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.
[0035] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.
[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0037] like Figure 1a and Figure 1b As shown, an embodiment of the utility model provides a laminating machine, including a main body and an auxiliary device arranged on at least one of the two sides of the main body, the auxiliary device includes a base 18, a connecting rod assembly, two clamping parts arranged opposite to each other and a driving device 10, the two ends of the connecting rod assembly are rotatably connected to the base 18 and the clamping part respectively, the driving device 10 is arranged in the base 18 and connected to the connecting rod assembly, and the connecting rod assembly is configured to move under the drive of the driving device 10 to clamp and separate the two clamping parts.
[0038] The auxiliary device of the utility model includes a clamping part that can clamp the product 5, which can fix the product 5 when the laminating machine cuts the product 5, thereby solving the problem of waste film accumulation of the product 5 due to the lateral movement of the cutter 8 of the laminating machine, causing the cutter 8 to be severely worn, and the edge film of the product warping when the cutter 8 cuts, thereby increasing the yield rate of the laminating machine production.
[0039] The driving device 10 disclosed in some embodiments of the present invention is a dual-axis driving device, and the connecting rod assembly includes a first connecting rod assembly and a second connecting rod assembly, each of the first connecting rod assembly and the second connecting rod assembly includes a plurality of connecting rods rotatably connected head to tail.
[0040] In the utility model, the first connecting rod assembly and the second connecting rod assembly are rotatably connected, so that the product 5 can be clamped and the product can be moved horizontally toward the driving device 10 at the same time, that is, the product 5 can be "clamped" toward the installation side of the driving device 10 and the product 5 can be "stretched" toward the driving device 10 at the same time. This can help to make the film of the product 5 smoother, which is beneficial to the subsequent cutting of the product 5 by the laminating machine.
[0041] In the above embodiment, if Figure 3a and Figure 3b As shown, in order to realize the action of "clamping" of the clamping part and "stretching" the product 5 toward the driving device 10 at the same time, the driving device 10 is a dual-axis driving device 10 and includes a dual driving shaft 11, and the dual driving shaft 11 includes two driving shafts arranged in parallel, namely, a first driving shaft and a second driving shaft. The clamping part includes a clamping plate 9 and a connecting end 15 arranged on one side of the clamping plate 9, and the connecting end 15 is rotatably connected to the connecting rod assembly through a first connecting shaft 16; the connecting rod assembly includes a first connecting rod assembly and a second connecting rod assembly, each of which includes a first connecting rod 12, a second connecting rod 14 and a second connecting shaft 17 connecting the first connecting rod 12 and the second connecting rod 14, one end of the first connecting rod 12 is rotatably connected to the first connecting shaft 16, and the other end is rotatably connected to the second connecting shaft 17, one end of the second connecting rod 14 is rotatably connected to the second connecting shaft 17, and the other end of the second connecting rod 14 is connected to the corresponding driving shaft in the dual driving shaft 11.
[0042] In order to better achieve the action of "clamping" the product 5, in some embodiments of the utility model, the two drive shafts in the dual drive shaft 11 have the same rotation speed, but opposite rotation directions, so that the clamping and loosening of the clamping part can be better achieved. For example, when the first drive shaft rotates clockwise and the second drive shaft rotates counterclockwise, the "clamping" action is achieved; when the first drive shaft rotates counterclockwise and the second drive shaft rotates clockwise, the "loosening" action is achieved. The same rotation speed is to enable the two clamping parts to clamp or move away at the same speed to avoid uneven force on both sides of the product 5.
[0043] In order to make the clamping part better "clamp" with the product 5, in some embodiments, the clamping plate 9 includes a clamping surface and a connecting surface arranged on the side of the clamping surface, the connecting end 15 is arranged on the connecting surface, and the clamping surface includes a magnetic attraction portion arranged on the outer surface of the clamping surface. The magnetic attraction portion on the clamping plate 9 can make the two clamping plates 9 magnetically attracted together, so as to better contact with the product 5.
[0044] In some embodiments of the utility model, a friction portion is further provided above the clamping surface, and the magnetic portion and the friction portion are simultaneously provided on the outer surface of the clamping surface, the magnetic portion includes one or more sheet-like magnetic parts, which are distributed in the middle of the clamping surface, and the friction portion includes one or more sheet-like friction parts, which are distributed along the outer edge of the clamping surface; or, the magnetic parts are distributed along the outer edge of the clamping surface, and the friction parts are located in the middle of the clamping surface.
[0045] In other embodiments of the present invention, a friction portion may be separately provided on the clamping plate 9 in order to increase the friction between the clamping plate 9 and the product 5 , so that the product 5 and the clamping portion can be better stressed and the position of the clamping plate 9 can be adjusted more conveniently.
[0046] In some embodiments of the utility model, the magnetic attraction component includes an electromagnet. When the electromagnet is energized, the magnetic attraction component is magnetic and can quickly clamp the clamps 9 together. When the product 5 needs to be "loosened", the electromagnet is de-energized, and the attraction between the clamps 9 disappears, making it convenient for the clamps 9 to "loosen" the product 5.
[0047] In order to better clamp the product 5, in some embodiments, a polymer material is selected as the material of the friction member. For example, the friction member can be a silicone sheet, a rubber sheet, or a mesh hyaluronic acid sheet with a high degree of cross-linking.
[0048] In some embodiments of the present invention, Figure 1a As shown, the main body of the laminating machine includes a roller table 1, a laminating group and a cutting group;
[0049] The roller conveyor 1 comprises a first side edge, a second side edge, and a plurality of parallelly arranged transmission rollers 2 connected between the first side edge and the second side edge;
[0050] The laminating group is used to laminar the product 5 conveyed by the driving roller 2 and comprises a film shaft 6 and a protective film 4 wound on the film shaft 6, wherein the film shaft 6 is arranged above the driving roller 2 across the first side edge and the second side edge;
[0051] The cutting group is arranged above the roller 1 and is used to cut the coated product 5. The cutting group includes a shell 13, a sliding track arranged in the shell 13 and a cutter assembly that can slide along the extension direction of the sliding track. The two ends of the shell 13 span the first side and the second side. The cutter assembly includes a knife holder 7 with one end connected to the sliding track and a cutter 8 fixed on the knife holder 7.
[0052] The film coating group and the cutting group of the utility model cooperate simultaneously, and can cut the product 5 quickly and orderly.
[0053] In some embodiments of the present invention, the film shaft 6 includes a first film shaft and a second film shaft corresponding to the first film shaft, and the first film shaft and the second film shaft are both wrapped with a protective film 4 so that both the upper and lower surfaces of the product 5 can be coated.
[0054] In some embodiments of the utility model, the first film shaft and the second film shaft rotate synchronously, and the product 5 passes between the first film shaft and the second film shaft when passing through the film shaft 6 to be coated. As the first film shaft and the second film shaft rotate, the protective film 4 covers the upper and lower sides of the product 5. The purpose of synchronous rotation is to avoid the protective film 4 from being coated asynchronously, thereby causing the protective film 4 on the product 5 to accumulate.
[0055] like Figure 1a , Figure 1b and Figure 2 As shown, in order to make the auxiliary device cooperate with the film coating group and the cutting group, in some embodiments of the present invention, the auxiliary device is arranged between the film coating group and the cutting group. After the product 5 is coated by the film coating group, it is immediately clamped by the auxiliary device, which can clamp the product 5 and further fix the film just coated on the product 5, and at the same time "stretch" the film on the product 5 to avoid the accumulation of the film, so that it is easier to cut.
[0056] In some embodiments of the present invention, the driving roller 2 is connected to the roller table 1 through the seat bearing 3, and the seat bearing 3 ensures the smooth rolling of the driving roller 2 and the stable connection.
[0057] The following is the working process of the laminating machine of the utility model:
[0058] During operation, the driving roller 2 rotates clockwise, and the uncoated product 5 (such as a glass plate) moves radially along the driving roller 2 ( Figure 1a1, the cutter 8 moves to the cutting origin, and then the driving device 10 drives the double drive shaft 11 to rotate, and the double drive shaft 11 drives the first connecting rod 12 and the second connecting rod 14 to rotate, and the first connecting rod 12 drives the clamping plate 9 to flip and clamp the protective film 4, and then the knife holder 7 drives the cutter 8 to move axially along the transmission roller 2 for cutting, when the cutting is completed, the driving device 10 drives the double drive shaft 11 to rotate reversely, and the rotation of the double drive shaft 11 drives the first connecting rod 12 and the second connecting rod 14 to rotate, and at the same time makes the clamping plate 9 release the waste film of the protective film 4, and at this time a set of laminating action is completed.
[0059] So far, various embodiments of the present disclosure have been described in detail. Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. A laminating machine, characterized in that: The invention comprises a main body and an auxiliary device arranged on at least one of two sides of the main body, wherein the auxiliary device comprises a base (18), a connecting rod assembly, two clamping parts arranged opposite to each other, and a driving device (10), wherein two ends of the connecting rod assembly are rotatably connected to the base (18) and the clamping parts respectively, the driving device (10) is arranged in the base (18) and connected to the connecting rod assembly, and the connecting rod assembly is configured to move under the drive of the driving device (10) to clamp and separate the two clamping parts.
2. The laminating machine according to claim 1, characterized in that: The driving device (10) is a dual-axis driving device, and the connecting rod assembly comprises a first connecting rod assembly and a second connecting rod assembly, each of the first connecting rod assembly and the second connecting rod assembly comprises a plurality of connecting rods rotatably connected end to end.
3. The laminating machine according to claim 2, characterized in that: The dual-axis driving device comprises a dual driving shaft (11), each of the clamping parts comprises a clamping plate (9) and a connecting end (15) arranged on one side of the clamping plate (9), and the connecting end (15) is rotatably connected to the connecting rod assembly via a first connecting shaft (16); each of the first connecting rod assembly and the second connecting rod assembly comprises a first connecting rod (12), a second connecting rod (14) and a second connecting shaft (17) connecting the first connecting rod (12) and the second connecting rod (14), one end of the first connecting rod (12) is rotatably connected to the first connecting shaft (16), and the other end is rotatably connected to the second connecting shaft (17), one end of the second connecting rod (14) is rotatably connected to the second connecting shaft (17), and the other end of the second connecting rod (14) is connected to the corresponding driving shaft in the dual driving shaft (11).
4. The laminating machine according to claim 3, characterized in that: The clamping plate (9) comprises a clamping surface and a connecting surface arranged on the opposite side of the clamping surface, the connecting end (15) is arranged on the connecting surface, and the clamping surface comprises a magnetic attraction portion arranged on the outer surface of the clamping surface.
5. The laminating machine according to claim 4, characterized in that: A friction part is also arranged above the clamping surface, and the magnetic attraction part and the friction part are arranged on the outer surface of the clamping surface at the same time. The magnetic attraction part includes one or more sheet-like magnetic attraction parts, and the magnetic attraction parts are distributed in the middle of the clamping surface. The friction part includes one or more sheet-like friction parts, and the friction parts are distributed along the outer edge of the clamping surface; or, the magnetic attraction parts are distributed along the outer edge of the clamping surface, and the friction parts are located in the middle of the clamping surface.
6. The laminating machine according to claim 5, characterized in that: The magnetic attraction member includes an electromagnet.
7. The laminating machine according to claim 1, characterized in that: The main body comprises a roller table (1), a laminating group and a cutting group; The roller conveyor (1) comprises a first side, a second side, and a plurality of parallelly arranged transmission rollers (2) connected between the first side and the second side; The laminating group is used to laminar the product (5) conveyed by the transmission roller (2) and comprises a film shaft (6) and a protective film (4) wound on the film shaft (6), wherein the film shaft (6) is arranged above the transmission roller (2) across the first side edge and the second side edge; The cutting group is arranged above the roller (1) and is used to cut the coated product (5), the cutting group comprises an outer shell (13), a sliding track arranged in the outer shell (13) and a cutter assembly that can slide along the extension direction of the sliding track, the two ends of the outer shell (13) span the first side edge and the second side edge, and the cutter assembly comprises a knife holder (7) one end of which is connected to the sliding track and a cutter (8) fixed on the knife holder (7).
8. The laminating machine according to claim 7, characterized in that: The film shaft (6) comprises a first film shaft and a second film shaft arranged corresponding to the first film shaft, and the first film shaft and the second film shaft are both wound with a protective film (4).
9. The laminating machine according to claim 8, characterized in that: The first film shaft and the second film shaft rotate synchronously, and when the product (5) passes through the film shaft (6), it passes between the first film shaft and the second film shaft to be coated.
10. The laminating machine according to claim 7, characterized in that: The auxiliary device is arranged between the laminating group and the cutting group.