Base paper back coating equipment for tipping paper

Abstract

The utility model belongs to the technical field of tipping paper production, and particularly relates to tipping paper body paper back coating equipment which comprises a machine base, a paper inlet and a paper outlet are formed in the machine base, and a reversing assembly, a coating and printing assembly, a drying assembly and a paper back cleaning assembly are arranged between the paper inlet and the paper outlet. The coating and printing assembly is used for coating and printing the back face of tipping paper body paper, the drying assembly is used for drying the coated and printed tipping paper body paper, and the paper back cleaning assembly is arranged in front of the coating and printing assembly and used for removing paper scrap particles and raised dust on the back face of the tipping paper body paper. The paper back cleaning assembly is used for cleaning paper scrap particles and raised dust on the back face of the tipping base paper, and the paper back coating consistency and the back coating effect can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tipping paper production, in particular to a back coating device for a tipping paper base paper. Background Art

[0002] Tipping paper can firmly connect the cigarette and the filter rod together, while increasing the beauty of the cigarette. The back coating process of cigarette tipping paper is an important step in ensuring the quality of cigarette tipping paper. Since the transfer metal layer on the front of the base paper has been pre-treated and cannot be in direct contact with the air, and there is no coating on the back, the water absorption and absorption rate of the front and back of the tipping paper are inconsistent. The back coating process fixes the moisture content on the back by applying a layer of water-based coating on the back, ensuring that the water absorption on both sides is smooth and consistent. Back coating can also ensure that the tipping paper does not curl or deform, and meets the technical specifications for the appearance of cigarette connecting paper.

[0003] The current back coating equipment will reverse the front and back sides of the paper and then enter the coating and printing component for back coating. However, the back side of the paper after the reverse rotation will be stained with paper scraps, dust, etc., which will affect the consistency and effect of the back coating to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to provide a tipping paper base paper back coating device in view of the above-mentioned existing technical problems, so as to achieve the effect of improving the consistency of paper back coating and the effect of back coating.

[0005] In view of this, the utility model provides a tipping paper base paper back coating device, including a machine base, a paper inlet and a paper outlet are arranged on the machine base, and a device is arranged between the paper inlet and the paper outlet:

[0006] A reversing assembly, the reversing assembly is used for reversing the loading paper;

[0007] A coating and printing component, the coating and printing component is used to coat and print the back side of the binding paper base paper;

[0008] A drying component, which is used to dry the tipping paper base paper after printing;

[0009] The paper back cleaning component is arranged before the coating and printing component and is used to dust off the paper scraps and dust on the back of the tipping paper base paper.

[0010] In the technical solution, the consistency of the back coating of the paper and the effect of the back coating can be improved by cleaning the paper back with a paper back cleaning component for paper scrap particles and dust on the back of the base paper.

[0011] Furthermore, the coating and printing assembly includes a pressure roller and a coating roller which are arranged parallel to each other in the upper and lower parts. The pressure roller is rotatably arranged on the machine base, and the coating roller is rotatably arranged on the machine base and is connected to a circumferential rotation source so as to be able to rotate circumferentially. A paper passing channel for allowing the tipping paper base to pass through is provided between the pressure roller and the coating roller. The back side of the tipping paper base contacts the surface of the coating roller, and the front side of the tipping paper base contacts the surface of the pressure roller.

[0012] Further, the paper back cleaning component comprises:

[0013] A dusting roller, the dusting roller is arranged below the tipping paper base paper and opposite to the back side of the tipping paper base paper;

[0014] A driving assembly shares a power source with the coating roller, and the driving assembly is used to drive the dusting roller to swing back and forth and hit the back side of the tipping paper base paper.

[0015] In the technical solution, the driving component and the coating roller share a power source, which can reduce energy consumption, and the driving component can synchronously and periodically drive the dusting roller to swing back and forth with the rotation of the coating roller to perform intermittent dusting.

[0016] Furthermore, the driving component comprises:

[0017] A fixed seat, wherein two fixed seats are provided, and are respectively fixed on the machine bases on both sides of the dusting roller;

[0018] A first transmission rod, wherein two first transmission rods are provided, and a middle portion of the first transmission rod is rotatably connected to a fixed seat;

[0019] A second transmission rod, wherein two second transmission rods are provided, and the two second transmission rods are respectively connected to non-center portions of both ends of the coating roller;

[0020] One end of the second transmission rod away from the coating roller is rotatably connected to the first transmission rod, and the other end of the first transmission rod is connected to the dusting roller.

[0021] In this technical solution, the circumferential rotation source drives the coating roller to rotate, causing the second transmission rod to move accordingly, driving the first transmission rod to swing around the fixed seat, thereby causing the dusting roller to swing, that is, the dusting roller hits the paper once when the paper moves a certain distance, thereby achieving the purpose of dusting off the paper scraps and dust on the back of the base paper of the tipping paper.

[0022] Furthermore, the coating roller includes a main section and secondary sections respectively arranged at both ends of the main section, the width of the tipping paper base paper is smaller than the length of the main section, the main section and the secondary section are fixedly connected by a connecting shaft, the connecting shaft is parallel to the axis of the main section and is not colinear, the above-mentioned second transmission rod is rotatably connected to the connecting shaft, a positioning section coaxial with the main section is fixedly extended from the end surface of the secondary section away from the main section, the positioning section is rotatably arranged on the machine base, and one of the positioning sections is connected to a circumferential rotation source.

[0023] Furthermore, the dusting roller is equipped with a secondary cleaning component, which is used to clean the paper scraps and dust that fall on the dusting roller.

[0024] In the technical solution, the paper scrap particles and dust that fall on the dusting roller are cleaned by the secondary cleaning component, so that the surface of the dusting roller in contact with the tipping paper base paper can be kept clean.

[0025] Further, the secondary cleaning component includes:

[0026] Secondary gear, there are two secondary gears, extension shafts are extended from both ends of the dusting roller, the extension shaft passes through the end of the first transmission rod away from the second transmission rod and is rotatably connected to the first transmission rod, the two secondary gears are respectively sleeved on the two extension shafts and are circumferentially fixedly connected to the extension shafts, and the secondary gear is located on the side of the first transmission rod away from the dusting roller;

[0027] A dust suction component, the dust suction component is arranged at the lowermost end of the swing path of the dusting roller, and the dust suction component is used to suck away paper scraps and dust on the surface of the dusting roller in contact with the tipping paper base paper;

[0028] The arc-shaped rack is fixedly arranged on the side of the dust collection component, and the arc-shaped rack is colinear with the swing path of the secondary gear and meshes with the secondary gear.

[0029] In the present technical solution, the driving component swings the dusting roller, causing the secondary gear to swing along with it. The secondary gear meshes with the arc-shaped rack and rotates circumferentially during the swinging process, driving the dusting roller to rotate, so that the surface of the dusting roller in contact with the tipping paper base paper rotates downward toward the dust suction component, and the paper scraps and dust on the surface of the dusting roller facing the tipping paper base paper are sucked away by the dust suction component.

[0030] Furthermore, the dust collection component includes:

[0031] A dust suction pump, wherein the dust suction pump is fixedly arranged on a machine base;

[0032] The dust collector head includes a shell and an interface arranged at one end of the shell, the interface is connected to the dust pump, the end of the shell away from the interface is an arc-shaped receiving end matched with the dust roller, and the inside of the dust collector head is connected from the interface to the arc-shaped receiving end.

[0033] Furthermore, the reversing assembly includes a first roller, a second roller, a third roller and a fourth roller, the first roller and the second roller are arranged on the left side of the printing assembly, the first roller is located above the second roller, the third roller and the fourth roller are arranged on the right side of the printing assembly, the fourth roller is located above the third roller, the base paper of the tipping paper bypasses the first roller, the second roller, the third roller and the fourth roller in sequence to enter the printing assembly, and the paper back cleaning assembly is arranged between the fourth roller and the printing assembly.

[0034] Furthermore, the back coating method of the back coating device comprises the following steps:

[0035] S1: reversing, reversing the tipping paper base paper through the reversing assembly so that the back side of the tipping paper base paper faces the coating roller;

[0036] S2: Coating and printing. Before the tipping paper base paper enters the coating and printing assembly, the paper back cleaning assembly dusts off the paper scraps and dust on the back of the tipping paper base paper, and then the tipping paper base paper enters the coating and printing assembly for back coating;

[0037] S3: Drying: the drying component dries the printed tipping paper base paper.

[0038] The beneficial effects of the utility model are:

[0039] 1. The paper back cleaning component can be used to remove the paper scraps and dust on the back of the base paper, which can improve the consistency and effect of the paper back coating.

[0040] 2. The driving component and the coating roller share a power source, which can reduce energy consumption, and the driving component can synchronously and periodically drive the dusting roller to swing back and forth with the rotation of the coating roller, and dust intermittently.

[0041] 3. The circumferential rotation source drives the coating roller to rotate, so that the second transmission rod moves accordingly, and drives the first transmission rod to swing around the fixed seat, thereby causing the dusting roller to swing. That is, when the paper moves a certain distance, the dusting roller hits the paper once, thereby achieving the purpose of dusting off the paper scraps and dust on the back of the base paper of the tipping paper.

[0042] 4. The paper scraps and dust that fall on the dusting roller are cleaned by the secondary cleaning component, so that the contact surface between the dusting roller and the tipping paper base paper can be kept clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the utility model;

[0044] Figure 2 is a three-dimensional diagram of the paper back cleaning assembly;

[0045] Figure 3 It is a three-dimensional picture of the paper back cleaning component from another perspective;

[0046] Figure 4 It is a three-dimensional picture of the coating roller;

[0047] Figure 5 It is the front view of the paper back cleaning assembly;

[0048] Figure 6 It is a front view of the paper back cleaning component in another state;

[0049] Figure 7 Cross-section of the vacuum cleaner head.

[0050] The symbols in the figure are:

[0051] 1. Machine base; 2. Paper inlet; 4. Paper outlet; 5. Printing assembly; 6. Drying assembly; 7. Paper back cleaning assembly; 8. Pressing roller; 9. Printing roller; 10. Dust roller; 11. Fixed seat; 12. First transmission rod; 13. Second transmission rod; 14. Main section; 15. Secondary section; 16. Connecting shaft; 17. Positioning section; 18. Secondary gear; 19. Dust pump; 20. Arc rack; 21. Extension shaft; 22. Dust head; 23. Casing; 24. Interface; 25. Arc receiving end; 26. First roller; 27. Second roller; 28. Third roller; 29. ​​Fourth roller. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0053] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0055] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0056] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0057] Example 1

[0058] like Figure 1-2As shown, a back-coating device for base paper of tipping paper comprises a machine base 1, on which a paper inlet 2 and a paper outlet 4 are arranged, and between which a reversing assembly, a coating and printing assembly 5, a drying assembly 6 and a paper back cleaning assembly 7 are arranged. The reversing assembly is used for reversing the base paper of tipping paper; the coating and printing assembly 5 is used for coating and printing the back of the base paper of tipping paper; the drying assembly 6 is used for drying the base paper of tipping paper after coating and printing; the paper back cleaning assembly 7 is arranged before the coating and printing assembly 5, and is used for dusting off the paper scraps and dust on the back of the base paper of tipping paper.

[0059] The paper back cleaning component 7 can improve the consistency of the paper back coating and the effect of the back coating by cleaning the paper scraps and dust on the back of the base paper.

[0060] Example 2

[0061] like Figure 2-3 As shown, the coating and printing assembly 5 includes a pressing roller 8 and a coating roller 9 which are arranged parallel to each other in the upper and lower parts. The pressing roller 8 is rotatably arranged on the machine base 1, and the coating roller 9 is rotatably arranged on the machine base 1 and connected to a circumferential rotation source so as to be rotatable in a circumferential direction. A paper passing passage for allowing the base paper of the tipping paper to pass therethrough is provided between the pressing roller 8 and the coating roller 9. The back side of the base paper of the tipping paper contacts the surface of the coating roller 9, and the front side of the base paper of the tipping paper contacts the surface of the pressing roller 8.

[0062] The paper back cleaning assembly 7 includes a dusting roller 10 and a driving assembly. The dusting roller 10 is arranged below the tipping paper base paper and opposite to the back of the tipping paper base paper; the driving assembly shares a power source with the coating roller 9, and the driving assembly is used to drive the dusting roller 10 to swing back and forth, hitting the back of the tipping paper base paper, so that the dusting roller 10 Figure 5 and Figure 6 Switching between the two states. The driving assembly and the printing roller 9 share a power source, which can reduce energy consumption, and the driving assembly can periodically drive the dusting roller 10 to swing back and forth synchronously with the rotation of the printing roller 9, and dust intermittently.

[0063] The driving assembly includes a fixed seat 11, a first transmission rod 12 and a second transmission rod 13. There are two fixed seats 11, which are fixedly arranged on the machine base 1 on both sides of the dusting roller 10; there are two first transmission rods 12, and the middle part of the first transmission rod 12 is rotatably connected to the fixed seat 11; there are two second transmission rods 13, which are rotatably connected to the non-center parts of the two ends of the coating roller 9; one end of the second transmission rod 13 away from the coating roller 9 is rotatably connected to the first transmission rod 12, and the other end of the first transmission rod 12 is connected to the dusting roller 10.

[0064] The circumferential rotation source drives the coating roller 9 to rotate, so that the second transmission rod 13 moves accordingly, and drives the first transmission rod 12 to swing around the fixed seat 11, so that the dusting roller 10 swings, that is, the paper moves a certain distance, and the dusting roller 10 hits the paper once, so as to achieve the purpose of dusting off the paper scraps and dust on the back of the base paper of the tipping paper.

[0065] like Figure 4 As shown, the coating roller 9 includes a main section 14 and secondary sections 15 respectively arranged at both ends of the main section 14. The width of the tipping paper base paper is smaller than the length of the main section 14. The main section 14 and the secondary section 15 are fixedly connected by a connecting shaft 16. The connecting shaft 16 is parallel to the axis of the main section 14 and is not colinear. The second transmission rod 13 is rotatably connected to the connecting shaft 16. A positioning section 17 coaxial with the main section 14 is fixedly extended from the end surface of the secondary section 15 away from the main section 14. The positioning section 17 is rotatably arranged on the machine base 1, and one of the positioning sections 17 is connected to a circumferential rotation source.

[0066] Example 3

[0067] like Figure 2-3 and Figure 5-6 As shown, the dusting roller 10 is equipped with a secondary cleaning assembly, which is used to clean the paper scraps and dust that fall on the dusting roller 10. By cleaning the paper scraps and dust that fall on the dusting roller 10 with the secondary cleaning assembly, the surface of the dusting roller 10 that contacts the tipping paper base paper can be kept clean.

[0068] The secondary cleaning assembly includes a secondary gear 18, a dust collection assembly and an arc-shaped rack 20. There are two secondary gears 18. Extension shafts 21 extend from both ends of the dust roller 10. The extension shaft 21 passes through the end of the first transmission rod 12 away from the second transmission rod 13 and is rotatably connected to the first transmission rod 12. The two secondary gears 18 are respectively sleeved on the two extension shafts 21 and are circumferentially fixedly connected to the extension shafts 21. The secondary gear 18 is located on the side of the first transmission rod 12 away from the dust roller 10. The dust collection assembly is arranged at the bottom end of the swing path of the dust roller 10. The dust collection assembly is used to suck away the paper scraps and dust on the surface of the dust roller 10 that contacts the tipping paper base paper. The arc-shaped rack 20 is fixedly arranged on the side of the dust collection assembly. The arc-shaped rack 20 is colinear with the swing path of the secondary gear 18 and meshes with the secondary gear 18.

[0069] The driving assembly swings the dust roller 10, which causes the secondary gear 18 to swing along with it. The secondary gear 18 meshes with the arc-shaped rack 20 and rotates circumferentially during the swinging process, driving the dust roller 10 to rotate, so that the surface of the dust roller 10 in contact with the tipping paper base paper rotates downward toward the dust suction assembly, and the dust suction assembly sucks away the paper scraps and dust on the surface of the dust roller 10 facing the tipping paper base paper.

[0070] Example 4

[0071] like Figure 7 As shown, the dust collection assembly includes a dust collection pump 19 and a dust collection head 22. The dust collection pump 19 is fixedly arranged on the machine base 1; the dust collection head 22 includes a housing 23 and an interface 24 arranged at one end of the housing 23, the interface 24 is connected to the dust collection pump 19, and the end of the housing 23 away from the interface 24 is an arc-shaped receiving end 25 that matches the dusting roller 10, and the interior of the dust collection head 22 is connected from the interface 24 to the arc-shaped receiving end 25.

[0072] Example 5

[0073] like Figure 1 As shown, the reversing assembly includes a first roller 26, a second roller 27, a third roller 28 and a fourth roller 29, the first roller 26 and the second roller 27 are arranged on the left side of the coating and printing assembly 5, the first roller 26 is located above the second roller 27, the third roller 28 and the fourth roller 29 are arranged on the right side of the coating and printing assembly 5, the fourth roller 29 is located above the third roller 28, the base paper of the tipping paper bypasses the first roller 26, the second roller 27, the third roller 28 and the fourth roller 29 in sequence to enter the coating and printing assembly 5, and the paper back cleaning assembly 7 is arranged between the fourth roller 29 and the coating and printing assembly 5.

[0074] The back coating method of the back coating device comprises the following steps:

[0075] S1: reversing, reversing the tipping paper base paper through the reversing assembly so that the back side of the tipping paper base paper faces the coating roller 9;

[0076] S2: Printing: before the tipping paper base paper enters the printing assembly 5, the paper back cleaning assembly 7 dusts off the paper scraps and dust on the back of the tipping paper base paper, and then the tipping paper base paper enters the printing assembly 5 for back coating;

[0077] S3: Drying: the drying component 6 dries the printed tipping paper base paper.

[0078] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A tipping paper base paper back coating equipment, characterized in that , comprising a machine base (1), the machine base (1) being provided with a paper inlet (2) and a paper outlet (4), and being provided between the paper inlet (2) and the paper outlet (4): A reversing assembly, the reversing assembly is used for reversing the loading paper; A coating and printing component (5), wherein the coating and printing component (5) is used to coat and print the back side of the binding paper base paper; A drying component (6), the drying component (6) being used to dry the tipping paper base paper after printing; A paper back cleaning component (7) is arranged before the coating and printing component (5) and is used to dust off paper scraps and dust on the back of the tipping paper base paper.

2. The tipping paper base paper back coating equipment according to claim 1, characterized in that: The coating and printing assembly (5) comprises a pressing roller (8) and a coating roller (9) which are arranged parallel to each other in an upper and lower direction. The pressing roller (8) is rotatably arranged on the machine base (1). The coating roller (9) is rotatably arranged on the machine base (1) and is connected to a circumferential rotation source so as to be rotatable in a circumferential direction. A paper passage for allowing the tipping paper base paper to pass through is formed between the pressing roller (8) and the coating roller (9). The back side of the tipping paper base paper contacts the surface of the coating roller (9), and the front side of the tipping paper base paper contacts the surface of the pressing roller (8).

3. The tipping paper base paper back coating equipment according to claim 2, characterized in that: The paper back cleaning component (7) comprises: A dusting roller (10), the dusting roller (10) being arranged below the tipping paper base paper and opposite to the back side of the tipping paper base paper; A driving assembly shares a power source with the coating roller (9), and the driving assembly is used to drive the dusting roller (10) to swing back and forth and hit the back side of the tipping paper base paper.

4. The tipping paper base paper back coating equipment according to claim 3, characterized in that: The drive assembly comprises: A fixed seat (11), wherein two fixed seats (11) are provided, and are respectively fixedly arranged on the machine base (1) on both sides of the dusting roller (10); A first transmission rod (12), wherein two first transmission rods (12) are provided, and the middle portion of the first transmission rod (12) is rotatably connected to the fixed seat (11); A second transmission rod (13), wherein two second transmission rods (13) are provided, and the two second transmission rods (13) are respectively connected to non-center portions of two ends of the coating roller (9); One end of the second transmission rod (13) away from the coating roller (9) is rotatably connected to the first transmission rod (12), and the other end of the first transmission rod (12) is connected to the dusting roller (10).

5. The tipping paper base paper back coating equipment according to claim 4, characterized in that: The coating roller (9) comprises a main section (14) and secondary sections (15) arranged at both ends of the main section (14); the width of the tipping paper base is smaller than the length of the main section (14); the main section (14) and the secondary section (15) are fixedly connected via a connecting shaft (16); the connecting shaft (16) is parallel to the axis of the main section (14) and is not colinear; the second transmission rod (13) is rotatably connected to the connecting shaft (16); a positioning section (17) coaxial with the main section (14) is fixedly extended from the end surface of the secondary section (15) away from the main section (14); the positioning section (17) is rotatably arranged on the machine base (1), and one of the positioning sections (17) is connected to a circumferential rotation source.

6. The tipping paper base paper back coating equipment according to claim 4, characterized in that: The dusting roller (10) is equipped with a secondary cleaning component, which is used to clean paper scraps and dust that fall on the dusting roller (10).

7. The tipping paper base paper back coating equipment according to claim 6, characterized in that: The secondary cleaning component includes: A secondary gear (18), wherein two secondary gears (18) are provided, and extension shafts (21) are extended from both ends of the dusting roller (10), and the extension shaft (21) passes through one end of the first transmission rod (12) away from the second transmission rod (13) and is rotatably connected to the first transmission rod (12), and the two secondary gears (18) are respectively sleeved on the two extension shafts (21) and are circumferentially fixedly connected to the extension shafts (21), and the secondary gear (18) is located on a side of the first transmission rod (12) away from the dusting roller (10); A dust suction component, the dust suction component being arranged at the lowest end of the swing path of the dusting roller (10), and being used for sucking away paper scraps and dust on the surface of the dusting roller (10) in contact with the tipping paper base paper; An arc-shaped rack (20) is fixedly arranged on the side of the dust collection component, and the arc-shaped rack (20) is colinear with the swing path of the secondary gear (18) and meshes with the secondary gear (18).

8. The tipping paper base paper back coating equipment according to claim 7, characterized in that: The dust collection component comprises: A dust suction pump (19), wherein the dust suction pump (19) is fixedly arranged on the machine base (1); The dust collector head (22) comprises a shell (23) and an interface (24) arranged at one end of the shell (23), the interface (24) being connected to a dust pump (19), an end of the shell (23) away from the interface (24) being an arc-shaped receiving end (25) matching with a dusting roller (10), and the interior of the dust collector head (22) being connected from the interface (24) to the arc-shaped receiving end (25).

9. The tipping paper base paper back coating equipment according to claim 1, characterized in that: The reversing assembly comprises a first roller (26), a second roller (27), a third roller (28) and a fourth roller (29); the first roller (26) and the second roller (27) are arranged on the left side of the coating and printing assembly (5); the first roller (26) is located above the second roller (27); the third roller (28) and the fourth roller (29) are arranged on the right side of the coating and printing assembly (5); the fourth roller (29) is located above the third roller (28); the tipping paper base paper sequentially bypasses the first roller (26), the second roller (27), the third roller (28) and the fourth roller (29) to enter the coating and printing assembly (5); and the paper back cleaning assembly (7) is arranged between the fourth roller (29) and the coating and printing assembly (5).

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