Coil scraper device and nozzle forming machine

Abstract

The present invention relates to a paper scraper device and a nozzle rod forming machine, wherein the paper scraper device comprises: a mounting seat (1); and a scraper (2), which is fixed on the mounting seat (1), and the scraper (2) has a blade portion (21), and the blade portion (21) is configured to contact and press the surface of the paper (7) to be glued, so as to scrape the surface of the paper (7) to be glued by relative movement with the paper (7). The device can scrape the surface of the paper to be glued by the scraper before gluing the paper in the nozzle rod forming process, so as to facilitate the spraying of glue and increase the absorption capacity of the paper to glue. When the paper forms a cylinder in the nozzle rod forming process, the paper is firmly bonded to reliably wrap the filament strip in the paper, so as to avoid the problems of dust adhering to the bonding position of the paper in the subsequent cooling process, causing the nozzle rod to break, burst or circumferential diameter detection signal failure, etc., and can reduce the scrap rate of the nozzle rod forming and make the equipment run reliably.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco machinery, in particular to a coil paper scraper device and a nozzle rod forming machine. Background Art

[0002] At present, the paper supply in the nozzle forming machine can adopt external paper supply and internal paper supply, and the internal paper supply is more commonly used. In the production process, the paper on the turntable is conveyed by multiple paper guide rollers, and two glue marks are applied in the middle of the paper through two cold glue nozzles to fix the tow strips, and then a glue mark is applied on the edge of the paper through the hot glue nozzle to make the paper adhere to the tow strips after being rolled into a cylinder. In this process, the paper and the tow strips meet at the smoke gun, and finally the formed nozzle is conveyed to the cooling strip to cool the hot glue.

[0003] In this solution, during the nozzle rod forming process, due to the lack of auxiliary materials, or some brands of paper coils are too smooth, the absorption capacity of glue is biased, resulting in the nozzle rod joints not being firmly bonded, resulting in cracks. In addition, after the equipment has been running for a period of time, a lot of paper coil dust will accumulate at the cooling strip position. This dust will mix with the overlap glue on the paper coil, resulting in nozzle rod breakage, cracks, nozzle rod circumference diameter measurement signal failures and other failures and shutdowns, increasing the amount of waste and reducing the effective operation rate of the nozzle rod forming machine. Summary of the invention

[0004] According to one aspect of the present invention, a paper scraper device is provided, comprising:

[0005] Mounting seat; and

[0006] The scraper is fixed on the mounting seat and has a blade portion, which is configured to contact and press the surface of the paper coil so as to scrape the surface of the paper coil to be glued by relative movement with the paper coil.

[0007] In some embodiments, the scraper has at least two blade portions, the scraper is detachably fixed to the mounting seat, and the mounting posture of the scraper relative to the mounting seat is switchable to selectively make different blade portions contact the coil paper.

[0008] In some embodiments, the scraper is in the form of a diamond-shaped column, and the scraper has two blade portions, which are located at two opposite edges of the diamond-shaped column.

[0009] In some embodiments, the mount includes:

[0010] A fixing plate having a mounting hole thereon, the mounting hole being matched and fixed with the first end of the scraper; and

[0011] A protective cover, wherein a first end of the protective cover is connected to the fixing plate, a second end of the protective cover extends to cover the second end of the scraper, and an opening is provided on one side of the protective cover;

[0012] The scraper is located in the protective cover and the blade portion for contacting the coiled paper is exposed from the opening.

[0013] In some embodiments, the first end of the scraper is in the form of a polygonal prism, and the mounting hole is adapted to the shape of the first end of the scraper to limit the scraper in the circumferential direction.

[0014] In some embodiments, a first fastener is further included, a first fixing hole is provided on the fixing plate, and the first fastener passes through the first fixing hole to tighten the scraper.

[0015] In some embodiments, a second fastener is also included. The fixing plate extends in a direction away from the opening to beyond the protective cover. A second fixing hole is provided on the portion of the fixing plate beyond the protective cover. The second fixing hole is an oblong hole, and the extension direction is consistent with the extension direction of the fixing plate relative to the protective cover. The second fastener passes through the second fixing hole to realize the installation of the paper scraper device.

[0016] In some embodiments, an air blowing cleaning mechanism is also included. An air bleed nozzle is provided on the protective cover. The air blowing cleaning mechanism is used to provide compressed air into the cavity of the protective cover through the air bleed nozzle.

[0017] In some embodiments, a control component is further included to enable the air blowing cleaning mechanism to be turned on intermittently.

[0018] In some embodiments, the air blowing cleaning mechanism comprises:

[0019] A gas source, for providing compressed gas;

[0020] Pressure regulating valves, used to regulate the pressure of compressed gases; and

[0021] The on-off valve is arranged downstream of the pressure regulating valve and is used to control the on-off of the air path between the pressure regulating valve and the air induction nozzle.

[0022] According to another aspect of the present invention, a nozzle rod forming machine is provided, comprising the coil paper scraper device of the above embodiment.

[0023] In some embodiments, it also includes:

[0024] A driving roller, used to provide driving force for the movement of the paper roll;

[0025] The pressing roller is arranged opposite to the driving roller in the radial direction, and the coiled paper is pressed between the pressing roller and the driving roller;

[0026] A plurality of guide rollers, respectively disposed upstream and downstream of the driving roller, for guiding the paper roll; and

[0027] Gluing component, used for applying glue on the paper roll;

[0028] The installation position of the paper scraper device is configured so that the scraper contacts the paper between the driving roller and the gluing member.

[0029] In some embodiments, the scraper contacts the web between two adjacent downstream end guide rollers.

[0030] In some embodiments, the installation angle of the web scraper device is configured so that the blade portion is in oblique contact with the web.

[0031] In some embodiments, the tension applied to the paper roll by the guide roller adjacent to the scraper can be adjusted according to the pressing force applied to the paper roll by the scraper, so that the tension on the paper roll remains constant.

[0032] Based on the above technical scheme, the paper scraper device of the embodiment of the present invention can scrape the surface of the paper to be glued by the scraper before gluing the paper during the nozzle rod forming process, so as to facilitate the spraying of glue and increase the absorption capacity of the paper to glue. When the paper is formed into a cylinder during the nozzle rod forming process, it is firmly bonded to reliably wrap the filament strips in the paper, so as to avoid dust adhering to the bonding position of the paper during the subsequent cooling process, causing the nozzle rod to break, burst or circumferential diameter detection signal failure, etc., which can reduce the scrap rate of nozzle rod forming and make the equipment run reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0034] Figure 1 Schematic diagrams of the structures of some embodiments of the paper scraper device of the present invention;

[0035] Figure 2A and Figure 2B They are respectively a front view and a side view of a scraper in the paper scraper device of the present invention;

[0036] Figure 3A , Figure 3B and Figure 3C They are respectively a front view, a top view and an AA cross-sectional view of some embodiments of a mounting seat in a paper scraper device of the present invention;

[0037] Figure 4 The figure is a schematic diagram of the installation position of the paper scraper device of the present invention in the nozzle rod forming machine.

[0038] Description of reference numerals:

[0039] 1. Mounting seat; 2. Scraper; 3. First fastener; 4. Second fastener; 5. Air nozzle; 6. Air blowing cleaning mechanism; 7. Paper roll;

[0040] 10, driving roller; 20, paper pressing roller; 30, first guide roller; 40, second guide roller; 50, third guide roller; 60, fourth guide roller;

[0041] 11. Fixed plate; 12. Protective cover; 21. Blade; 61. Air source; 62. Pressure regulating valve; 63. On-off valve;

[0042] 111, mounting hole; 112, first fixing hole; 113, second fixing hole; 121, opening; 122, cavity; 123, mounting interface. DETAILED DESCRIPTION

[0043] The present invention is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect so defined can be combined with any other aspect or aspects, unless explicitly stated not to be combined. In particular, any feature that is considered to be preferred or advantageous can be combined with one or more other features that are considered to be preferred or advantageous.

[0044] The terms "first", "second" and the like appearing in the present invention are only for the convenience of description to distinguish different components with the same name, and do not indicate a priority or primary and secondary relationship.

[0045] The purpose of the present invention is to provide a paper scraper device and a nozzle rod forming machine, which can reduce the amount of waste generated by equipment shutdown.

[0046] like Figures 1 to 4 As shown, the present invention provides a paper scraper device. In some embodiments, the paper scraper device includes: a mounting seat 1 and a scraper 2. The scraper 2 is fixed on the mounting seat 1. The scraper 2 has a blade portion 21. The blade portion 21 is configured to contact and press against the surface of the paper roll 7 so as to scrape the surface of the paper roll 7 through relative movement with the paper roll 7.

[0047] The coil scraper device of this embodiment of the present invention can act on the surface of the coil to be glued by the scraper 2 before gluing the coil in the process of forming the cigarette mouthpiece, and the glue here is hot glue, so as to scrape the surface of the coil 7 to be glued, increase the roughness of the glue surface, and facilitate the spraying of glue, which can increase the absorption capacity of the coil to glue, and firmly bond the coil to form a cylinder during the mouthpiece forming process, so as to reliably wrap the tow strip in the coil, so as to avoid the dust adhering to the coil bonding position during the subsequent cooling process, causing the mouthpiece to break, burst or circumferential diameter detection signal failure, etc., which can reduce the scrap rate of the mouthpiece forming and make the equipment run reliably. In addition, the device has a simple structure and stable performance.

[0048] In some embodiments, the scraper 2 has at least two blade portions 21, and the scraper 2 is detachably fixed on the mounting seat 1, and the installation posture of the scraper 2 relative to the mounting seat 1 can be switched to selectively make different blade portions 21 contact the paper roll 7. For example, at least two blade portions 21 are provided in the circumference of the scraper 2, and by switching the circumferential installation angle of the scraper 2 relative to the mounting seat 1, different blade portions 21 can be used as working blades. For example, the scraper 2 can be in the form of a polygonal prism, etc. The scraper 2 can be made of ceramic or metal, etc.

[0049] This embodiment can conveniently switch to other blade portions 21 after one blade portion 21 is worn, thereby extending the service life of the scraper 2 .

[0050] In some embodiments, Figure 2A and Figure 2B The scraper 2 is a rhombus column, and the scraper 2 has two blade portions 21, and the two blade portions 21 are located at two opposite edges of the rhombus column. By setting the scraper 2 in a rhombus column shape, it is easy to form the blade portions 21 at the two sharper edges, so as to achieve a better scraping effect, and the thickness gradually increases from the edge to the inside, which can increase the strength of the part where the blade is located; in addition, since the rhombus is a symmetrical structure, when the blade portion 21 is switched, there is no need to change the interface for mounting the scraper 2 on the mounting seat 1, so the structure can be simplified.

[0051] Optionally, the scraper 2 may be in the form of a triangular prism, with a blade portion 21 formed at each edge; or the scraper 2 may be in the form of a quadrangular prism with a rectangular cross section.

[0052] In some embodiments, Figure 3A As shown, the mounting base 1 includes: a fixing plate 11 and a protective cover 12 .

[0053] The fixing plate 11 is provided with a mounting hole 111, which is fixed with the first end of the scraper 2, and the second end of the scraper 2 can be a free end or fixed in the same manner as the first end. For example, in order to fix the scraper 2 in a diamond column shape, the mounting hole 111 can be a diamond hole.

[0054] The first end of the protective cover 12 is connected to the fixed plate 11, and the second end extends to cover the second end of the scraper 2. An opening 121 is provided on one side of the protective cover 12. The scraper 2 is located in the protective cover 12, and the blade 21 for contacting the paper roll 7 is exposed from the opening 121, so that the blade 21 contacts the paper roll 7. For example, the protective cover 12 is a long strip structure, and its cross section may be C-shaped.

[0055] This mounting seat 1 can not only reliably fix the scraper 2, but also protect the scraper 2 to prevent harm to the operator, thereby improving the safety of the paper scraper device during use.

[0056] In some embodiments, the first end of the scraper 2 is a polygonal prism, and the mounting hole 111 is adapted to the shape of the first end of the scraper 2 to limit the circumference of the scraper 2. This structure can achieve circumferential limiting through the structural cooperation between the scraper 2 and the mounting hole 111, which can improve the reliability of limiting and simplify the structure.

[0057] In some embodiments, Figure 1 and Figure 3C As shown, the paper scraper mechanism further includes a first fastener 3. The fixing plate 11 is provided with a first fixing hole 112. The first fastener 3 passes through the first fixing hole 112 to tighten the scraper 2. For example, the first fastener 3 is a bolt or a screw. Figure 3C In the embodiment, the first fastener 3 is arranged at the bottom of the fixing plate 11 , and the first fastener 3 presses against the bottom of the scraper 2 .

[0058] This embodiment can further restrict the freedom of axial movement of the scraper 2 on the basis of the above circumferential limitation, so as to reliably fix the scraper 2. In addition, for the embodiment where the circumferential limitation cannot be achieved by the scraper structure itself, the first fastener 3 plays the role of circumferential limitation and axial limitation at the same time.

[0059] In some embodiments, Figure 1 and Figure 3A As shown, the paper scraper mechanism also includes a second fastener 4, the fixing plate 11 extends in a direction away from the opening 121 to exceed the protective cover 12, and a second fixing hole 113 is provided on the portion of the fixing plate 11 that exceeds the protective cover 12. The second fixing hole 113 is an oblong hole, and the extension direction of the oblong hole is consistent with the extension direction of the fixing plate 11 relative to the protective cover 12. The second fastener 4 passes through the second fixing hole 113 to install the paper scraper device on the nozzle rod forming machine.

[0060] This embodiment can finely adjust the pressing force between the scraper 2 and the paper 7 when installing the paper scraper device. When the scraper 2 applies the pressing force to the paper 7, the tilt angle of the paper 7 will change, so the tilt angle of the blade 21 relative to the paper 7 may also be adjusted. This structure can maintain a suitable pressing force and tilt angle between the scraper 2 and the paper 7 according to the thickness of the paper 7 and the ability to absorb glue, thereby obtaining a better scraping effect, improving the adhesion of glue, and increasing the qualified product rate of the nozzle rod molding.

[0061] In some embodiments, the paper scraper mechanism further includes an air blowing cleaning mechanism 6, and an air bleed nozzle 5 is provided on the protective cover 12. The air blowing cleaning mechanism 6 is used to provide compressed air to the cavity of the protective cover 12 through the air bleed nozzle 5. The air blowing cleaning mechanism 6 can be opened for blowing during the operation of the nozzle rod forming machine or when the machine is stopped.

[0062] In the process of scraping the surface of the paper roll 7 to be glued, a lot of paper powder will be generated. Some of the paper powder will be scattered on the equipment or on the ground, and another part of the paper powder will enter the cavity 122 of the protective cover 12 along the scraper 2. The air blowing cleaning mechanism 6 can clean the paper powder and dust in the protective cover 12 to prevent the paper powder and dust from escaping from the opening 121 and adhering to the paper roll 7, thereby optimizing the gluing effect.

[0063] For example, Figure 1 and Figures 3A to 3C As shown, the air nozzle 5 can be arranged at the top of the protective cover 12 to blow paper powder or dust downward as much as possible to avoid causing greater pollution to the air. The air nozzle 5 can be arranged at the middle position of the top of the protective cover 12 along its own width and length direction, so that the air flow can reach various positions in the cavity of the protective cover 12 to optimize the cleaning effect. Specifically, a mounting interface 123 can be set at the top of the protective cover 12 to conveniently connect the air nozzle 5 to the protective cover 12 through the mounting interface 123.

[0064] In some embodiments, the paper scraper device further includes a control component, such as a PLC or a DSP, etc., for intermittently opening the air blowing cleaning mechanism 6. This embodiment can reduce gas waste and reduce equipment power loss while ensuring the cleaning effect. This paper scraper device with a timed cleaning function saves time and effort when cleaning paper powder and dust, and is easy to maintain. Optionally, the air blowing cleaning mechanism 6 can also be continuously opened.

[0065] In some embodiments, Figure 1 As shown, the air blowing cleaning mechanism 6 includes: an air source 61 for providing compressed air; a pressure regulating valve 62 for regulating the pressure of the compressed air to form the gas pressure required for blowing paper powder and dust; and an on-off valve 63, which is arranged downstream of the pressure regulating valve 62 and is used to control the on-off of the air path between the pressure regulating valve 62 and the air bleed nozzle 5. For example, the on-off valve 63 can be a two-position two-way electromagnetic reversing valve. The air source 61, the pressure regulating valve 62 and the on-off valve 63 are connected through an air pipe.

[0066] When the two-position, two-way electromagnetic reversing valve is energized, it switches to the first position (left position), connects the air path between the pressure regulating valve 62 and the air nozzle 5, and supplies air to the cavity 122 of the protective cover 12 to automatically blow away the paper powder and dust around the scraper 2; when the two-position, two-way electromagnetic reversing valve is energized, it switches to the second position (right position), disconnects the air path between the pressure regulating valve 62 and the air nozzle 5, and stops supplying air to the cavity 122 of the protective cover 12.

[0067] Secondly, the present invention also provides a nozzle rod forming machine, comprising the coil paper scraper device of the above embodiment.

[0068] This type of mouthpiece forming machine can scrape the surface of the coil 7 to be glued by the scraper 2 before gluing the coil during the cigarette mouthpiece forming process, so as to facilitate the spraying of glue and increase the absorption capacity of the coil to glue. During the mouthpiece forming process, the tow strips can be reliably wrapped in the coil, which can reduce the scrap rate of the mouthpiece forming, make the equipment run reliably, and improve the efficiency of the equipment. Moreover, the coil scraper device is arranged on the running path of the coil 7 in the original equipment, and will not change the structure of the original equipment.

[0069] In some embodiments, Figure 4 As shown, the nozzle rod forming machine of the present invention also includes: a driving roller 10, which is operably connected to a power component such as a motor, and is used to provide a driving force for the movement of the paper coil 7; a paper pressing roller 20, which is arranged radially opposite to the driving roller 10, and the paper coil 7 is pressed between the paper pressing roller 20 and the driving roller 10; a plurality of guide rollers, which are respectively arranged upstream and downstream of the driving roller 10, and are used to guide the paper coil 7 to guide the paper coil 7 to a target position, and apply a force opposite to the curling direction of the paper coil 7 to flatten the paper coil 7; and a gluing component, which is used to apply glue on the paper coil 7, and the gluing component includes a hot glue nozzle, which is used to apply hot glue on the edge of the paper coil 7 to bond the overlapping parts of the paper coil 7 to wrap the tow strips.

[0070] For example, the driving roller 10 can be an iron roller, the paper pressing roller 20 can be a rubber roller, and a plurality of guide rollers are provided, including a first guide roller 30, a second guide roller 40, a third guide roller 50 and a fourth guide roller 60 which are arranged in sequence along the running track of the paper coil 7, wherein the first guide roller 30 is located upstream of the driving roller 10, and the second guide roller 40 is located downstream of the driving roller 10. Each guide roller enables the paper coil 7 to form a curved extension path, which can not only extend the longer extended paper coil 7 according to a preset path within a smaller space, but also guide the paper coil 7 to the target position.

[0071] The installation position of the paper scraper device is configured to make the scraper 2 contact the paper roll 7 located between the driving roller 10 and the gluing component. This setting position can not only make the scraper 2 scrape the surface of the paper roll 7 to be glued before gluing to optimize the gluing effect, but also prevent the paper roll 7 from being pressed by the driving roller 10 and the paper pressing roller 20 after scraping, so that the gluing surface can be kept in the scraped state as much as possible.

[0072] In some embodiments, Figure 4 As shown, the scraper 2 contacts the paper roll 7 between the two adjacent guide rollers at the end of the downstream, that is, the scraper 2 contacts the paper roll 7 between the third guide roller 50 and the fourth guide roller 60. Since the paper roll between the two guide rollers at the end of the downstream is located on the outside, it is convenient to arrange the scraper 2, and the scraping surface is scraped at a position close to the downstream in the extension path of the paper roll 7, which can reduce the amount of dust attached to the paper roll 7 after scraping, and is more conducive to the attachment of glue.

[0073] In some embodiments, the installation angle of the paper scraper device is configured to make the blade 21 contact the paper 7 obliquely. For some paper 7 with low bearing strength, the blade 21 contacting the paper 7 obliquely can prevent the paper 7 from being scratched or damaged.

[0074] In some embodiments, the tension applied by the guide roller adjacent to the scraper 2 to the paper roll 7 can be adjusted according to the pressing force applied by the scraper 2 to the paper roll 7, so that the tension of the paper roll 7 remains constant. This structure can prevent the paper roll 7 from being damaged when the pressing force of the scraper 2 on the paper roll is too large, or prevent the surface of the paper roll 7 from being difficult to scrape when the pressing force of the scraper 2 on the paper roll is too small, and ensures that when the scraper 2 needs to apply different pressing forces to the paper roll 7, the tension of the paper roll 7 itself remains constant, so that the device can operate normally.

[0075] The above is a detailed introduction to a paper scraper device and a nozzle rod forming machine provided by the present invention. This article uses specific embodiments to explain the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A paper scraper device, characterized in that: include: The mounting base (1) comprises: a fixing plate (11) provided with a mounting hole (111), the mounting hole (111) being matched and fixed with the first end of the scraper (2); and a protective cover (12), the first end of the protective cover (12) being connected to the fixing plate (11), the second end extending to cover the second end of the scraper (2), and one side of the protective cover (12) being provided with an opening (121); a scraper (2) fixed on the mounting seat (1), the scraper (2) having a blade portion (21), the scraper (2) being located in the protective cover (12) and the blade portion (21) being exposed from the opening (121), the blade portion (21) being configured to contact and press against the surface of the paper roll (7) so as to scrape the surface of the paper roll (7) to be glued by relative movement with the paper roll (7); a first fastener (3), the fixing plate (11) being provided with a first fixing hole (112), the first fastener (3) passing through the first fixing hole (112) to press against the scraper (2); A second fastener (4), the fixing plate (11) extends in a direction away from the opening (121) to extend beyond the protective cover (12), a second fixing hole (113) is provided on a portion of the fixing plate (11) extending beyond the protective cover (12), the second fixing hole (113) is an oblong hole, and the extending direction is consistent with the extending direction of the fixing plate (11) relative to the protective cover (12), and the second fastener (4) passes through the second fixing hole (113) to achieve the installation of the paper scraper device.

2. The paper scraper device according to claim 1, characterized in that: The scraper (2) has at least two blade portions (21), the scraper (2) is detachably fixed to the mounting seat (1), and the mounting posture of the scraper (2) relative to the mounting seat (1) is switchable to selectively allow different blade portions (21) to contact the paper roll (7).

3. The paper scraper device according to claim 2, characterized in that: The scraper (2) is in the form of a rhombus-shaped column, and has two blade portions (21), wherein the two blade portions (21) are located at two opposite edges of the rhombus-shaped column.

4. The paper scraper device according to claim 1, characterized in that: The first end of the scraper (2) is in the form of a polygonal prism, and the mounting hole (111) is adapted to the shape of the first end of the scraper (2) so as to limit the position of the scraper (2) in the circumferential direction.

5. The paper scraper device according to claim 1, characterized in that: It also comprises an air blowing cleaning mechanism (6), wherein an air induction nozzle (5) is provided on the protective cover (12), and the air blowing cleaning mechanism (6) is used to provide compressed air into the cavity of the protective cover (12) through the air induction nozzle (5).

6. The paper scraper device according to claim 5, characterized in that: It also comprises a control component for intermittently opening the air blowing cleaning mechanism (6).

7. The paper scraper device according to claim 5, characterized in that: The air blowing cleaning mechanism (6) comprises: A gas source (61) for providing compressed gas; a pressure regulating valve (62) for regulating the pressure of the compressed gas; and An on-off valve (63) is provided downstream of the pressure regulating valve (62) and is used to control the on-off of the air path between the pressure regulating valve (62) and the air bleed nozzle (5).

8. A nozzle rod forming machine, characterized in that: It comprises the paper scraper device as described in any one of claims 1 to 7.

9. The nozzle rod forming machine according to claim 8, characterized in that: Also includes: A driving roller (10) for providing a driving force for the movement of the paper roll (7); A paper pressing roller (20) is arranged radially opposite to the driving roller (10), and the paper roll (7) is pressed between the paper pressing roller (20) and the driving roller (10); a plurality of guide rollers, respectively arranged upstream and downstream of the driving roller (10), for guiding the paper roll (7); and A gluing component, used for applying glue on the coiled paper (7); The installation position of the paper scraper device is configured so that the scraper (2) contacts the paper (7) located between the driving roller (10) and the gluing component.

10. The nozzle forming machine according to claim 9, characterized in that: The scraper (2) contacts the paper coil (7) between two adjacent guide rollers at the downstream end.

11. The nozzle forming machine according to claim 8, characterized in that: The installation angle of the paper scraper device is configured so that the blade portion (21) is in oblique contact with the paper (7).

12. The nozzle forming machine according to claim 9, characterized in that: The tensioning force applied to the paper roll (7) by the guide roller adjacent to the scraper (2) can be adjusted according to the pressing force applied to the paper roll (7) by the scraper (2), so that the tension on the paper roll (7) remains unchanged.

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