Elliptical shaft device for paper supply system of filter tip assembling machine

Abstract

The invention relates to the technical field of cigarette equipment, in particular to an elliptical shaft device for a paper supply system of a filter tip assembling machine, which comprises an elliptical shaft, the elliptical shaft comprises shaft sleeves and a shaft body, the outer side wall of each shaft sleeve is provided with a groove, the shaft sleeves are detachably sleeved on the outer wall surface of the shaft body in a paired and symmetrical manner, and the shaft sleeves are detachably sleeved on the outer wall surface of the shaft body. The shaft sleeve can be of various specifications, and the shaft sleeve of each specification can adapt to different pre-punching widths on tipping paper of different brands through the positions of different grooves. By the adoption of the structure, through the shaft sleeves of various specifications and different combination modes, the requirement for matched slotting type oval shafts needed by tipping paper pre-punched at various intervals is met, and the situation that the whole oval shaft and the overall structure of the oval shaft are replaced due to different tipping paper pre-punching intervals is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette making equipment, and in particular relates to an elliptical shaft device for a paper feeding system of a filter tipping machine. Background Art

[0002] The paper feeding and gluing system of the filter tipping machine in the pipetting unit primarily consists of a paper tray conversion and tensioning device, a tipping paper splicing device, a paper feed roller, a gluing device, an oscillator mechanism, a post-gluing heating device, and a cutting drum and cutter. The gluing and feeding system continuously supplies tipping paper to the machine as needed, evenly coating one side of the paper with a layer of glue that meets process requirements. The system then cuts the continuous tipping paper into pieces of equal length.

[0003] The working process of the tipping paper feeding and gluing device is that the paper feeding roller pulls the tipping paper out from the paper tray rack, the tipping paper passes through the splicing device, passes between the paper pressing roller and the paper feeding roller, and is transported forward under the joint action of the friction force of the paper pressing roller and the paper feeding roller to realize the continuous supply state of the tipping paper. After the tipping paper falls on the outer cylindrical surface of the glue roller of the glue feeding system and is coated with glue, it passes through the paper guide roller 100, the elliptical shaft 300, and the paper guide roller 200 of the oscillator mechanism and reaches the tipping paper cutting wheel of the cutting system. The tipping paper is adsorbed under the action of the negative pressure suction force of the paper cutting wheel, and is sent to the cutting system paper cutter to cut the tipping paper into equal intervals and then pass it to the next process.

[0004] See Figure 1 The existing oscillator mechanism includes a paper guide roller 100, an elliptical shaft 300, a paper guide roller 200, a paper guide roller bracket 400, and a positioning bracket 500. The paper guide roller 100 and the paper guide roller 200 are both mounted on the paper guide roller bracket, and the elliptical shaft 300 is also mounted on the paper guide roller bracket 400 through the positioning bracket 500.

[0005] The elliptical shaft of the oscillator mechanism in the filter tipping machine's shear-type cutting device is a crucial component in the tipping paper feeding process. The shaft's function is to utilize the difference between its major and minor radii to ensure that the tipping paper feed and the cutting wheel feed at the same speed during cutting. After completing one cut, the shaft pulls the tipping paper back a certain distance before moving on to the next, ensuring that the tipping paper is properly attached to the cigarette pack.

[0006] The gluing device is a crucial step in the gluing of tipping paper during cigarette rolling. The glue control roller provides a uniform and stable supply of glue to the gluing roller. The supply and gluing of tipping paper are completed simultaneously, so the gluing effect directly impacts the quality of cigarette wrapping. The gluing process can be divided into full gluing and intermittent gluing, depending on the product process. Both full and intermittent gluing methods are determined by the glue control roller.

[0007] To effectively reduce the proportion of harmful components in mainstream smoke and control tar intake, tipping paper perforation technology can be divided into two processes: online perforation and pre-perforation. Pre-perforation involves pre-drilling holes in the tipping paper, while laser perforation uses laser technology to precisely perform in-line perforation. Laser perforation utilizes a full gluing process, eliminating the need for spacer gluing. However, pre-perforated tipping paper requires the use of spacer gluing rollers to minimize the risk of glue spilling from the holes and contaminating the paper during transport. However, due to the structural characteristics of the spacer gluing rollers, some glue spillage can still contaminate the paper guide rollers and elliptical shafts of the oscillator mechanism. This can cause glue to accumulate and thicken during operation, leading to paper rupture and a large number of defective products. Technicians have implemented grooves in the elliptical shafts and paper guide rollers corresponding to the perforation locations, significantly alleviating these quality issues.

[0008] However, because the pre-punched hole widths vary between brands of tipping paper, changing brands requires replacing the corresponding spacer gluing rollers and oscillator components. Replacing the spacer gluing rollers and paper guide rollers is relatively simple, as they are easily disassembled and installed. However, replacing the oscillator's elliptical shaft is more complex, making replacement and adjustment time-consuming. Summary of the Invention

[0009] In response to the deficiencies in the prior art, the present invention develops an elliptical shaft device for the paper feeding system of a filter tipping machine. The invention realizes the use of shaft sleeves of various specifications and different combinations to meet the requirements of pre-punched tipping paper with various spacings, without the need to replace the entire elliptical shaft and its overall structure due to different pre-punched spacings of the tipping paper.

[0010] The technical solution of the present invention to solve the technical problem is: The present application provides a combined elliptical shaft device for a paper feeding system of a filter tipping machine, comprising a paper guide roller bracket, one side of which is connected to a paper guide roller, and the other side of which is connected to a positioning bracket, wherein an elliptical shaft is rotatably sleeved in the positioning bracket; The elliptical shaft includes a shaft sleeve and a shaft body. The outer wall of the shaft sleeve is provided with a groove. The shaft sleeves are detachably sleeved on the outer wall of the shaft body in pairs and in a symmetrical manner. The shaft sleeves are provided with a variety of specifications. The position of the grooves of each specification of the shaft sleeves is different to adapt to the different pre-punched widths of different brands of tipping paper. The paper guide roller is provided with a groove corresponding to the position of the groove on the elliptical axis.

[0011] As an improvement to the above solution, the sleeve is configured to be elliptical, and each end of the sleeve has a step with a depth equidistant from the elliptical contour in the circumferential direction.

[0012] As an improvement to the above solution, the distance between the groove and one end of the sleeve is greater than the distance between the groove and the other end of the sleeve; The end face of the groove that is shorter than one end of the sleeve is the short side face, and the side of the groove that is longer than one end of the sleeve is the long side face. The two sleeves are mounted on the shaft body with their short sides fitting together or their long sides fitting together.

[0013] As an improvement to the above solution, the total length of the sleeve is 48 mm, the slot margin of the sleeve is 22 mm or 19 mm, and the groove width of the groove is 5 mm.

[0014] As an improvement to the above scheme, the elliptical shaft also includes a first circular hole, a first flat key, a first keyway, a retaining ring, a first threaded hole and a first screw. A shaft shoulder is provided on the shaft body, a first circular hole is provided at one end of the shaft sleeve, and the shaft sleeve is sleeved on the outside of the shaft body through the first circular hole. There are two shaft sleeves, and a first flat key is symmetrically installed on the outside of the shaft body. A first keyway is provided on the inner wall of the first circular hole, and the first flat key and the first keyway are plugged in. A first threaded hole is provided at one end of the shaft body, and a first screw is provided at one end of the shaft body. The first screw is threadedly connected to the first threaded hole through a retaining ring.

[0015] As an improvement to the above scheme, a through hole is provided on one side of the paper guide roller bracket, the positioning bracket is plugged into the through hole, mounting holes are symmetrically provided on one side of the paper guide roller bracket, a fixing bolt is provided on one side of the paper guide roller bracket, two fixing bolts are provided, and the fixing bolts are threadedly connected to the positioning bracket through the mounting hole. As an improvement to the above-mentioned solution, a synchronous pulley is installed on the outside of the shaft body, a second circular hole is opened at one end of the synchronous pulley, the synchronous pulley is sleeved on the outside of the shaft body through the second circular hole, a second flat key is installed on the outside of the shaft body, a second keyway is opened on the inner wall of the second circular hole, and the second flat key and the second keyway are plugged into each other.

[0016] As an improvement to the above solution, a second threaded hole is provided at one end of the shaft body away from the sleeve, and a second screw is provided at the other end of the shaft body away from the sleeve. The second screw is threadedly connected to the second threaded hole through a washer.

[0017] Compared with the prior art, the above solution has the following advantages or beneficial effects: The present invention is provided with shaft sleeves of various specifications, and through different combinations of two shaft sleeves with short side surfaces symmetrically fitted or long side surfaces symmetrically fitted, the slotted elliptical shafts required for pre-punched kraft paper with various spacings are met. There is no need to replace the elliptical shaft and its overall structure due to different pre-punching spacings of the kraft paper, so as to realize the corresponding matching elliptical shafts required for pre-punched kraft paper with different punching spacings under different brands, and achieve the effect of quick disassembly and quick replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 It is a structural diagram of an oscillator mechanism in the prior art.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the other side of the present invention; Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the present invention; Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the elliptical axis of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the elliptical shaft of the M-shaped sleeve of the present invention.

[0022] Figure 7 It is a structural schematic diagram of the elliptical shaft of the N-type bushing of the present invention.

[0023] In the figure, 100-200, paper guide roller; 300, elliptical shaft; 400, paper guide roller bracket; 500, positioning bracket; 1, paper guide roller bracket; 2, paper guide roller; 6, elliptical shaft; 61, bushing; 611, step; 62, shaft body; 63, first circular hole; 64, first flat key; 65, first keyway; 66, retaining ring; 67, first threaded hole; 68, first screw; 69, shoulder; 7, groove; 8, positioning bracket; 9, through hole; 10, synchronous pulley; 11, second circular hole; 12, washer; 13, second screw; 14, second threaded hole; 15, mounting hole; 16, fixing bolt; 17, second flat key; 18, second keyway. DETAILED DESCRIPTION

[0024] To clearly illustrate the technical features of this solution, the present invention is described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides numerous different embodiments or examples for implementing various configurations of the present invention. To simplify the disclosure of the present invention, the following description focuses on components and configurations of specific examples. Furthermore, reference numbers and / or letters may be repeated throughout the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the present invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the drawings. These terms are used solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] Example 1 refer to Figures 2 to 5 The elliptical shaft device for the paper feeding system of the filter tipping machine described in this embodiment includes a paper guide roller bracket 1, one side of the paper guide roller bracket 1 is connected to a paper guide roller 2, and two paper guide rollers 2 are provided. The other side of the paper guide roller bracket 1 is connected to a positioning bracket 8, and an elliptical shaft 6 is installed inside the positioning bracket 8.

[0026] The elliptical shaft 6 includes a sleeve 61, a shaft body 62, a first circular hole 63, a first flat key 64, a first keyway 65, a retaining ring 66, a first threaded hole 67 and a first screw 68. The shaft body 62 is arranged in the positioning bracket 8 through a bearing sleeve. A shoulder 69 is provided on the shaft body 62. A first circular hole 63 is provided at one end of the sleeve 61. The sleeve 61 is sleeved on the outside of the shaft body 62 through the first circular hole 63. There are two sleeves 61. First flat keys 64 are symmetrically installed on the outside of the shaft body 62. A first keyway 65 is provided on the inner wall of the first circular hole 63. The first flat key 64 and the first keyway 65 are plugged into each other. A first threaded hole 67 is provided at one end of the shaft body 62. A first screw 68 is provided at one end of the shaft body 62. The first screw 68 is threadedly connected to the first threaded hole 67 through a retaining ring 66. First, respectively sleeve the two sleeves 61 on the shaft body 62 through the first circular hole 63, align the first keyway 65 on the inner wall of the sleeve 61 with the first flat key 64 on the shaft body 62, and push it in axially until the sleeve 61 is fully in place. Circumferential positioning is achieved by plugging the first flat key 64 into the first keyway 65. Then, install the retaining ring 66 at one end of the shaft body 62, align the first screw 68 with the first threaded hole 67 of the shaft body 62, rotate the first screw 68 to tighten it with the first threaded hole 67, and limit the axial displacement of the sleeve 61 by the retaining ring 66 and the shaft shoulder 69 to ensure that the two sleeves 61 are fixed on the shaft body 62.

[0027] refer to Figure 2 The outer wall of the sleeve 61 is provided with a groove 7, which is annular and equidistant from the ellipse. The depth of the groove 7 is sufficient to accommodate the accumulation of glue after the pre-punched tipping paper overflows, thereby preventing damage to the tipping paper. Specifically, the groove 7 is 1 mm deep and 5 mm wide.

[0028] Each end of the sleeve 61 has a step 611 equidistant from the elliptical contour. Specifically, the steps 611 are 1mm deep, with widths of 1mm and 2mm, respectively. The difference in width facilitates installation and distinguishing the two end faces of the sleeve 61. The steps 611 also serve to create a groove at the joint between the two sleeve ends, preventing damage to the tipping paper caused by a protrusion at the joint between the two mating surfaces.

[0029] refer to Figure 4 The shaft sleeve 61 is set to be elliptical. The shaft sleeve 61 has two specifications, namely M type and N type. The total length of the M-type shaft sleeve 61 and the N-type shaft sleeve 61 is 48 mm. The total length of the combination of two shaft sleeves 61 of the same specification is 96 mm, which is adapted to the length of one side of the shaft sleeve 61 assembled with the conventional elliptical shaft 6. The difference between the M-type shaft sleeve 61 and the N-type shaft sleeve 61 is that the slot margin of the M-type shaft sleeve 61 (the distance from one end face of the shaft sleeve 61 to the groove side of the groove 7 closer to it) is 19 mm, and the slot margin of the N-type shaft sleeve 61 is 22 mm.

[0030] The end face of the groove 7 and one end of the sleeve 61 with a shorter distance is the short side face, and the end face of the groove 7 and one end of the sleeve 61 with a longer distance is the long side face. The two sleeves 7 are symmetrically fitted on the shaft body 62 with the short sides or the long sides symmetrically fitted.

[0031] In use, see Figure 6 After the M-shaped sleeves 61 are symmetrically assembled, the application range of the assembled elliptical shaft 6 is as follows: Given that the hole spacing of the pre-punched tipping paper actually used should be smaller than the width of the slotted groove 7, the applicable range should be the maximum width of the two slots after assembly plus or minus 2mm, such as 38mm+2mm to 48mm-2mm; 48mm+2mm to 58mm-2mm; after the short sides are bonded, that is, the AA combination, it can be used for pre-punched tipping paper with a hole spacing range of 40-46mm; after the long sides are bonded, that is, the BB combination, it can be used for pre-punched tipping paper with a hole spacing range of 50-56mm. Therefore, after the M-shaped sleeves 61 are assembled, the assembled elliptical shaft 6 is applicable to pre-punched tipping paper with a hole spacing range of 40-56mm.

[0032] In use, see Figure 7 After the N-type bushings 61 are combined in a symmetrical manner, the applicable scope of the combined elliptical shaft 6 is: In view of the fact that the hole distance size of the pre-punched kraft paper actually used should be smaller than the slot width, the use range of the N-type bushings 61 should be the maximum width size value of the two slots after combination plus or minus 2mm, such as 32mm+2mm to 42mm-2mm; 54mm+2mm to 64mm-2mm. After the short sides are bonded, that is, the AA combination, it can be used for pre-punched kraft paper with a punching spacing of 34-40mm; after the long sides are bonded, that is, the BB combination, it can be used for pre-punched kraft paper with a punching spacing of 56-62mm.

[0033] refer to Figure 4 A through hole 9 is provided on one side of the paper guide roller bracket 1, and the positioning bracket 8 is plugged into the through hole 9. A mounting hole 15 is symmetrically provided on one side of the paper guide roller bracket 1. A fixing bolt 16 is provided on one side of the paper guide roller bracket 1. Two fixing bolts 16 are provided. The fixing bolts 16 are threadedly connected to the positioning bracket 8 through the mounting hole 15. Align the positioning bracket 8 with the through hole 9 on one side of the paper guide roller bracket 1 and insert it smoothly along the axial direction to ensure that the positioning bracket 8 is tightly fitted with the through hole 9. After observing that the mounting hole 15 on the paper guide roller bracket 1 is aligned with the threaded hole of the positioning bracket 8, take two fixing bolts 16 and pass them through the mounting hole 15 respectively, screw them into the threaded hole of the positioning bracket 8, and tighten them alternately and evenly to the appropriate torque to ensure that the two are firmly connected and there is no looseness.

[0034] refer to Figure 4A synchronous pulley 10 is installed on the outside of the shaft body 62, and a second circular hole 11 is opened at one end of the synchronous pulley 10. The synchronous pulley 10 is sleeved on the outside of the shaft body 62 through the second circular hole 11. A second flat key 17 is installed on the outside of the shaft body 62, and a second key groove 18 is opened on the inner wall of the second circular hole 11. The second flat key 17 and the second key groove 18 are plugged into. The second flat key 17 is embedded in the key groove on the outside of the shaft body 62 to ensure that the second flat key 17 and the second key groove 18 fit tightly. The second circular hole 11 of the synchronous pulley 10 is aligned with the shaft body 62 so that the second key groove 18 is aligned with the second flat key 17. The synchronous pulley 10 is pushed into the shaft body 62 along the axial direction until the synchronous pulley 10 is fully in place, so as to achieve tight plugging of the second flat key 17 and the second key groove 18, ensuring that the synchronous pulley 10 and the shaft body 62 are circumferentially fixed, and the installation is completed.

[0035] refer to Figure 4 A second threaded hole is provided at the end of the shaft body 62 away from the sleeve 61, and a second screw 13 is provided at the end of the shaft body 62 away from the sleeve 61. The second screw 13 is threadedly connected to the second threaded hole through a washer 12. The washer 12 is put on the end of the shaft body 62 away from the sleeve 61, aligning it with the second threaded hole 14, screwing the second screw 13 into the second threaded hole 14, and tightening it until the washer 12 is tightly fitted with the end face of the shaft body 62, ensuring that the second screw 13 is firmly connected to the second threaded hole 14 to complete the axial positioning.

[0036] Principle and advantages of use: First, the two sleeves 61 are respectively sleeved on both ends of the shaft body 62 through the first circular hole 63, and the first key groove 65 on the inner wall of the sleeve 61 is aligned with the first flat key 64 on the shaft body 62. The sleeve 61 is pushed in along the axial direction until it is fully in place. The circumferential positioning is achieved by plugging the first flat key 64 into the first key groove 65. Then, a retaining ring 66 is installed at one end of the shaft body 62, and the first screw 68 is aligned with the first threaded hole 67 of the shaft body 62. The first screw 68 is rotated to fasten it with the first threaded hole 67. The axial displacement of the sleeve 61 is limited by the retaining ring 66 to ensure that the two sleeves 61 are fixed on the shaft body 62. Then, the positioning bracket 8 is aligned with the first threaded hole 67 of the shaft body 62. Insert the through hole 9 on one side of the paper guide roller bracket 1 smoothly along the axial direction to ensure that the positioning bracket 8 is tightly fitted with the through hole 9. After observing that the mounting hole 15 on the paper guide roller bracket 1 is aligned with the threaded hole of the positioning bracket 8, take two fixing bolts 16 and pass them through the mounting holes 15 respectively. Screw them into the threaded holes of the positioning bracket 8, tighten them alternately and evenly to the appropriate torque to ensure that the two are firmly connected and there is no looseness. Finally, put the washer 12 on the end of the shaft body 62 away from the sleeve 61, align it with the second threaded hole 14, screw the second screw 13 into the second threaded hole 14, and tighten it until the washer 12 is tightly fitted with the end face of the shaft body 62, ensuring that the second screw 13 is firmly connected to the second threaded hole 14 to complete the axial positioning.

[0037] The present invention designs shaft sleeves 61 of different specifications and different combinations of two shaft sleeves 61 to meet the needs of the slotted elliptical shaft 6 required for pre-punched kraft paper with various spacings. There is no need to replace the elliptical shaft 6 and its overall structure due to different pre-punching spacings of the kraft paper, so as to realize the corresponding matching elliptical shaft 6 required for pre-punched kraft paper with different punching spacings under different brands, and achieve the effect of quick disassembly and quick replacement.

[0038] Example 2 The content of this embodiment is basically the same as that of the above-mentioned embodiment 1, except that: The paper guide roller 2 is also provided with a groove 7, which is annular in shape. The groove 7 of the paper guide roller 2 corresponds to the position of the groove on the elliptical shaft 6, so that the paper guide roller 2 and the elliptical shaft 6 can cooperate to achieve the supply of glue-coated tipping paper. The groove 7 of the paper guide roller 2 is also 1 mm deep and 5 mm wide. The paper guide roller 2 is provided with multiple specifications, that is, paper guide rollers 2 with different groove positions to adapt to elliptical shafts 6 of different specifications, thereby accommodating the different pre-punched widths on tipping paper of different brands. Since the paper guide roller 2 is relatively simple to disassemble and assemble, during use, the paper guide roller 2 is disassembled as a whole to replace paper guide rollers 2 of different specifications.

[0039] Although the above describes the specific implementation methods of the invention in conjunction with the accompanying drawings, it does not limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A combined elliptical shaft device for a paper feeding system of a filter tipping machine, characterized by: It comprises a paper guide roller bracket (1), one side of the paper guide roller bracket (1) is connected to a paper guide roller (2), the other side of the paper guide roller bracket (1) is connected to a positioning bracket (8), and an elliptical shaft (6) is provided in a rotating sleeve inside the positioning bracket (8); The elliptical shaft (6) comprises a shaft sleeve (61) and a shaft body (62), the outer wall of the shaft sleeve (61) is provided with a groove (7), the shaft sleeve (61) is detachably sleeved on the outer wall of the shaft body (62) in pairs and in a symmetrical manner, and the shaft sleeve (61) is provided with a plurality of specifications, and the shaft sleeve (61) of each specification is adapted to different pre-punched hole widths on different brands of tipping paper by different positions of the groove (7); The paper guide roller (2) is provided with a groove (7) corresponding to the position of the groove (7) on the elliptical shaft (6).

2. The combined elliptical shaft device for the paper feeding system of the filter tipping machine according to claim 1, characterized in that: The shaft sleeve (61) is configured to be elliptical, and each end of the shaft sleeve (61) has a step (611) with a depth equidistant from the elliptical profile in the circumferential direction.

3. The combined elliptical shaft device for the paper feeding system of the filter tipping machine according to claim 1, characterized in that: The distance between the groove (7) and one end of the shaft sleeve (61) is greater than the distance between the groove (7) and the other end of the shaft sleeve (61); The end face of the groove (7) at a shorter distance from one end of the shaft sleeve (61) is a short side face, and the side of the groove (7) at a longer distance from one end of the shaft sleeve (61) is a long side face. The two shaft sleeves (61) are sleeved on the shaft body (62) in a manner such that the short sides are fitted together or the long sides are fitted together.

4. The combined elliptical shaft device for the paper feeding system of the filter tipping machine according to claim 3, characterized in that: The total length of the shaft sleeve (61) is 48 mm, the slotting margin of the shaft sleeve (61) is 22 mm or 19 mm, and the groove width of the groove (7) is 5 mm.

5. The combined elliptical shaft device for the paper feeding system of the filter tipping machine according to claim 1, characterized in that: The elliptical shaft (6) further comprises a first circular hole (63), a first flat key (64), a first keyway (65), a retaining ring (66), a first threaded hole (67) and a first screw (68); a shaft shoulder (69) is provided on the shaft body (62); a first circular hole (63) is provided at one end of the shaft sleeve (61); the shaft sleeve (61) is sleeved on the outside of the shaft body (62) through the first circular hole (63); two shaft sleeves (61) are provided; a first flat key (64) is symmetrically installed on the outside of the shaft body (62); a first keyway (65) is provided on the inner wall of the first circular hole (63); the first flat key (64) and the first keyway (65) are plug-connected; a first threaded hole (67) is provided at one end of the shaft body (62); a first screw (68) is provided at one end of the shaft body (62); the first screw (68) is threadedly connected to the first threaded hole (67) through the retaining ring (66).

6. The combined elliptical shaft device for the paper feeding system of the filter tipping machine according to claim 1, characterized in that: A through hole (9) is provided on one side of the paper guide roller bracket (1), the positioning bracket (8) and the through hole (9) are plugged together, a mounting hole (15) is symmetrically provided on one side of the paper guide roller bracket (1), a fixing bolt (16) is provided on one side of the paper guide roller bracket (1), two fixing bolts (16) are provided, and the fixing bolts (16) are threadedly connected to the positioning bracket (8) through the mounting hole (15).

7. The combined elliptical shaft device for the paper feeding system of the filter tipping machine according to claim 1, characterized in that: A synchronous pulley (10) is installed on the outside of the shaft body (62), a second circular hole (11) is opened at one end of the synchronous pulley (10), and the synchronous pulley (10) is sleeved on the outside of the shaft body (62) through the second circular hole (11). A second flat key (17) is installed on the outside of the shaft body (62), and a second key groove (18) is opened on the inner wall of the second circular hole (11), and the second flat key (17) and the second key groove (18) are plug-connected.

8. The combined elliptical shaft device for the paper feeding system of a filter tipping machine according to claim 1, characterized in that: A second threaded hole (14) is provided at one end of the shaft body (62) away from the shaft sleeve (61), and a second screw (13) is provided at one end of the shaft body (62) away from the shaft sleeve (61). The second screw (13) is threadedly connected to the second threaded hole (14) via a washer (12).

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