A small filter rod slitting device

Abstract

The utility model belongs to filter stick production equipment technical field, specifically disclose a small filter stick slitting device, including slitting subassembly and be located on the filter stick placing subassembly of slitting subassembly, the slitting subassembly includes the slitting mesa, the host computer installation box that is located in the lower extreme of slitting mesa and is located in the edge part stop plate of slitting mesa top, be equipped with slitting machine in the host computer installation box, the slitting mesa top surface is provided with cutting groove, the cutting groove is used to accommodate the slitting cutter of slitting machine. The utility model provides a small filter stick slitting device, adopt this filter stick sleeve with specific gap, provide rigid support and circumferential constraint for the filter stick to be slitted, ensure cutting stability, improve slitting accuracy, secondly, sleeve constitutes the channel environment of half -enclosed, solved the sample disorder of flying, the problem of ejection under the high -speed cutting, finally, this slitting device eliminates the major safety hazard of the operator's finger being injured by blade because of filter stick easy sliding, deformation.

Description

Technical Field

[0001] This utility model relates to the technical field of filter rod production equipment, and in particular to a small filter rod slitting device. Background Technology

[0002] Filter rods are cylindrical fibers used in tobacco, medical, or air purification industries. During their research and development and production quality control, finished filter rods often need to be precisely slit into small samples of specific lengths. These slit samples are primarily used for subsequent physical performance testing (such as hardness, pressure drop, and filtration efficiency) and process verification, and are a crucial step in ensuring that the filter rod products meet design specifications.

[0003] However, current conventional slitting techniques face significant flexibility and effectiveness challenges when processing filter rods of this specific material and structure. The core characteristics of filter rods lie in their composition of fiber bundles, resulting in a relatively soft and tough texture, but low overall hardness (significantly lower than wood or hard plastic), and a tendency to deform and wrinkle. These characteristics directly impact the effectiveness of the slitting process.

[0004] Specifically, during the slitting process, if high-speed rotary cutting equipment such as a mini table saw is used directly, the filter rod material is soft and lacks rigid support. Under the high-speed impact of the saw blade, it is easy for it to shift, deform, or even wrinkle and bend, making it difficult to guarantee the accuracy of the slitting length. In addition, the low density and cylindrical geometry of the filter rod, combined with the kinetic energy generated by high-speed cutting, can easily cause small sections of the filter rod to be ejected and scattered from the working area after slitting. Finally, because the filter rod is relatively soft and needs to be manually positioned and fixed, when the operator holds the filter rod for slitting, their fingers need to be close to the high-speed rotating saw blade. The filter rod may accidentally slip or deform under force at the moment of cutting, which greatly increases the safety risk of the operator's fingers being accidentally injured by the saw blade.

[0005] In summary, the existing filter rod cutting process suffers from problems such as insufficient cutting accuracy, sample scattering and difficulty in collection, and significant operational safety hazards. Utility Model Content

[0006] This invention provides a small filter rod cutting device that can solve the problems of insufficient cutting accuracy, sample scattering and collection difficulties, and significant operational safety hazards in the existing filter rod cutting process.

[0007] A small filter rod slitting device includes a slitting assembly and a filter rod placement assembly disposed on the slitting assembly;

[0008] The slitting assembly includes a slitting table, a main unit mounting box located at the lower end of the slitting table, and an edge limiting plate located at the top of the slitting table. The main unit mounting box contains a slitting machine, and the top surface of the slitting table has a cutting groove for accommodating the slitting blade of the slitting machine.

[0009] The filter rod placement assembly includes a connector and a plurality of filter rod sleeves located below the connector, the filter rod sleeves being used to accommodate the filter rods;

[0010] The filter rod sleeve has a cutting notch that divides it into a first sleeve and a second sleeve. The two ends of the connector are respectively connected to the first sleeve and the second sleeve.

[0011] Furthermore, a limiting groove adapted to the filter rod sleeve is provided at the lower end of the left side of the edge limiting plate.

[0012] Furthermore, limiting components are provided at the front and rear ends of the bottom of the edge limiting plate;

[0013] The limiting component includes a vertical connecting strip and a connecting airbag located at the bottom of the vertical connecting strip. The front and rear sides of the cutting table are provided with long grooves that cooperate with the connecting airbag.

[0014] Furthermore, the inner surface of the long groove is a friction surface.

[0015] Furthermore, the connector is in the shape of an inverted V.

[0016] Furthermore, both ends of the connector are fixed to the first sleeve and the second sleeve by adhesive bonding or welding.

[0017] Furthermore, the length of the first sleeve is greater than the length of the second sleeve.

[0018] Furthermore, the width of the cutting notch is L, and the thickness of the slitting blade of the slitting machine is d, where L>d.

[0019] Furthermore, a limiting push rod is provided inside the first sleeve.

[0020] Furthermore, the limiting push rod is connected to the first sleeve by a thread.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This utility model provides a small filter rod slitting device. By incorporating a filter rod placement component on the slitting assembly, this component comprises a connector and a filter rod sleeve. The filter rod sleeve accommodates the filter rods and has a cutting notch to provide a cutting area for the slitting blade. This device offers the following advantages: First, by using the filter rod sleeve with the specific notch, it provides rigid support and circumferential constraint for the filter rods to be slit, addressing the core physical characteristics of filter rod materials such as softness, easy deformation, easy wrinkling, and low density. The filter rods are completely contained within the sleeve, preventing their soft fiber structure from bending or wrinkling during cutting, thus ensuring stable cutting. This significantly improves the cutting accuracy. Secondly, the sleeve forms a semi-enclosed channel environment, confining the small filter rod samples produced by cutting inside the sleeve or near the outlet, directly solving the problem of sample flying and ejection caused by the low density, cylindrical shape, and cutting kinetic energy of the filter rod under high-speed cutting. Finally, the operator only needs to put the filter rod into the sleeve and operate outside the sleeve (such as pushing the filter rod or triggering the cutting), without having to directly contact the cutting area or get close to the high-speed moving cutting blade with their fingers. This eliminates the major safety hazard of the operator's fingers being accidentally injured by the blade when manually fixing the soft filter rod for cutting, due to the easy slippage and deformation of the filter rod. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Figure 1 A schematic diagram of a small filter rod cutting device provided by this utility model;

[0025] Figure 2 This utility model provides a small filter rod cutting device. Figure 1 Enlarged view of the structure at point A in the image;

[0026] Figure 3 A front view of the structure of a small filter rod cutting device provided by this utility model;

[0027] Figure 4 Exploded view of the installation structure of the filter rod sleeve and limiting push rod of a small filter rod cutting device provided by this utility model;

[0028] Figure 5 An exploded view of the installation structure of the limiting push rod and push rod connector of a small filter rod cutting device provided by this utility model.

[0029] Explanation of reference numerals in the attached drawings: 1. Slitting assembly; 2. Filter rod placement assembly; 11. Slitting table; 12. Main unit mounting box; 13. Side limiting plate; 14. Cutting groove; 15. Limiting assembly; 16. Vertical connecting strip; 17. Connecting airbag; 18. Long groove; 131. Limiting long groove; 141. Slitting blade; 21. Connector; 22. Filter rod sleeve; 23. First sleeve; 24. Second sleeve; 221. Cutting notch; 231. Limiting push rod; 232. Push rod slider; 233. Push rod connector; 234. Push rod knob; 235. Groove. Detailed Implementation

[0030] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0031] like Figures 1 to 5 As shown, the present invention provides a small filter rod cutting device, including a cutting component 1 and a filter rod placement component 2 disposed on the cutting component 1;

[0032] The slitting assembly 1 includes a slitting table 11, a main unit mounting box 12 located at the lower end of the slitting table 11, and an edge limiting plate 13 located at the top of the slitting table 11. The main unit mounting box 12 contains a slitting machine (not shown in the figure). A cutting groove 14 is provided on the top surface of the slitting table 11. The cutting groove 14 is used to accommodate the slitting blade 141 of the slitting machine.

[0033] The filter rod placement assembly 2 includes a connector 21 and a plurality of filter rod sleeves 22 disposed below the connector 21. The filter rod sleeves 22 are used to accommodate filter rods; the number of filter rod sleeves 22 is not less than one.

[0034] The filter rod sleeve 22 has a cutting notch 221, which divides the filter rod sleeve 22 into a first sleeve 23 and a second sleeve 24. The two ends of the connector 21 are respectively connected to the first sleeve 23 and the second sleeve 24.

[0035] In this small filter rod slitting device, the slitting blade 141 on the slitting machine is fixed to the high-speed rotating shaft of the slitting machine by a rigid clamping device (such as a flange or locking nut); and the cutting edge plane of the slitting blade 141 is perpendicular to the axis of the filter rod sleeve 22; in addition, the cutting notch 221 opened on the filter rod sleeve 22 is located corresponding to the cutting path of the blade; and a connecting member 21 is provided to connect the first sleeve 23 and the second sleeve 24, while the connecting member 21 does not interfere with the slitting blade 141.

[0036] This small filter rod cutting device is equipped with a side limiting plate 13. The left side of the side limiting plate 13 is perpendicular to the axis of the filter rod sleeve 22 and is used to abut against the filter rod sleeve 22, thereby restricting the movement path of the filter rod sleeve 22, so that it moves along the preset route during the cutting process, avoids deviation, and thus ensures the uniformity of the cutting position of multiple filter rods.

[0037] The operation process of this small filter rod slitting device is as follows: Push the long filter rod into the filter rod sleeve 22 from one end, so that it is completely placed inside the filter rod sleeve 22. Push the filter rod to the cutting notch 221 of the filter rod sleeve 22, align the target cutting point with the cutting notch 221, start the slitting machine, and the slitting blade 141 rotates at high speed, moving the filter rod sleeve 22 along the length direction of the side limiting plate 13. The slitting blade 141 cuts into the cutting notch 221 and instantly cuts the filter rod vertically under the rigid support of the filter rod sleeve 22, avoiding fiber pulling. The cut small section of the filter rod is constrained by the filter rod sleeve 22 and remains inside the filter rod sleeve 22, thus realizing the filter rod slitting.

[0038] This small filter rod slitting device uses a filter rod sleeve 22 to provide rigid support and circumferential constraint for the filter rods to be slit. The filter rods are completely contained within the filter rod sleeve 22, preventing their soft fiber structure from bending or wrinkling freely during cutting. This completely overcomes the displacement, deformation, and wrinkling problems caused by the lack of support and low rigidity of the filter rods when using a table saw directly. The slitting blade 141 acts on the filter rod through a precise notch on the filter rod sleeve 22, ensuring a stable cutting point. This significantly improves the accuracy of the slitting length. At the same time, because the filter rods are firmly constrained, the slitting blade 141 (especially a sharp blade) can make a "cleaner" cut, effectively preventing the fibers from being pulled loose, thus obtaining a smooth and flat cut that meets the requirements of subsequent high-precision testing.

[0039] Furthermore, the filter rod sleeve 22 forms a semi-enclosed channel environment. The small filter rod samples produced by slitting are confined inside the filter rod sleeve 22 or near the outlet. This directly solves the problem of sample scattering and ejection caused by the low density, cylindrical shape, and cutting kinetic energy of the filter rods during high-speed cutting. The slitting samples are orderly retained inside the filter rod sleeve 22, greatly simplifying the collection process, avoiding sample loss, and improving the efficiency of R&D and quality inspection processes as well as the convenience of sample management.

[0040] The operator only needs to insert the filter rod into the filter rod sleeve 22 and perform operations (such as pushing the filter rod or triggering cutting) from outside the sleeve 22. Fingers do not need to directly contact the cutting area or approach the high-speed slitting blade 141. This eliminates the significant safety hazard of accidental finger injuries caused by the blade when manually fixing and cutting soft filter rods, as the filter rods are prone to slipping and deformation. The physical isolation provided by the filter rod sleeve 22 offers an inherently safe operating environment and reduces the risk of workplace injuries.

[0041] The filter rod sleeve 22 has a simple structure, making it easy to position and replace. With filter rod sleeves 22 of different lengths, the required cutting length can be easily set. This overcomes the lack of flexibility and convenience of existing technologies (such as miniature table saws). It makes cutting filter rod samples of different specifications and lengths simpler, faster, and more flexible, adapting to the diverse sample preparation needs in R&D and quality inspection.

[0042] This compact filter rod slitting device, through its ingeniously designed rigid filter rod sleeve 22 with notches, perfectly adapts to the unique physical properties of filter rods—their softness, deformability, and low density. This structure not only fundamentally suppresses undesirable deformation of the filter rod during the slitting process, ensuring high-precision, high-quality cuts, but also effectively constrains the cut sample, enabling safe, convenient, and efficient collection. Simultaneously, this design physically isolates the operator from hazardous areas, greatly enhancing operational safety. Therefore, this equipment is particularly suitable for the preparation of small-segment samples in filter rod research and development and quality control processes where strict requirements are placed on slitting accuracy, cut quality, operational safety, and efficiency.

[0043] like Figures 1 to 5 As shown, in some embodiments of this utility model, a limiting groove 131 adapted to the filter rod sleeve 22 is provided at the lower end of the left side of the edge limiting plate 13.

[0044] A limiting groove 131 is provided, and the outer wall of the filter rod sleeve 22 is embedded in the limiting groove 131 of the side limiting plate 13. This guides the filter rod sleeve 22 to move along the length direction of the side limiting plate 13, preventing deviation and ensuring the uniformity of the cutting length of multiple filter rods during a single cutting process.

[0045] like Figures 1 to 5 As shown, in some embodiments of this utility model, the front end and rear end of the bottom of the edge limiting plate 13 are provided with limiting components 15.

[0046] The limiting component 15 includes a vertical connecting strip 16 and a connecting airbag 17 located at the bottom of the vertical connecting strip 16. The front and rear sides of the cutting table 11 are provided with long grooves 18 that cooperate with the connecting airbag 17; the inner surface of the long groove 18 is a friction surface.

[0047] One end of the vertical connecting strip 16 is fixedly connected to the bottom of the side limiting plate 13, and the other end of the vertical connecting strip 16 is fixedly connected to the connecting airbag 17. The connecting airbag 17 is an inflatable airbag. After the side limiting plate 13 is moved to the designated position, the connecting airbag 17 is inflated so that the connecting airbag 17 can be tightly set in the long groove 18, thereby limiting the position of the side limiting plate 13.

[0048] like Figures 1 to 5 As shown, in some embodiments of this utility model, the connector 21 is inverted V-shaped;

[0049] Both ends of the connector 21 are fixed to the first sleeve 23 and the second sleeve 24 by adhesive bonding or welding.

[0050] The connector 21 is V-shaped, and both ends of the connector 21 are fixed to the first sleeve 23 and the second sleeve 24 by adhesive bonding or welding. The two cases are analyzed as follows: If adhesive bonding is used, the distance between the first sleeve 23 and the second sleeve 24 can be adjusted, i.e., the width of the cutting notch 221 can be adjusted. While ensuring the cutting of the slitting blade 141, the size of the cutting area can be adaptively adjusted. If welding is used, the stability of the connection between the connector 21 and the first sleeve 23 and the second sleeve 24 can be further enhanced. In actual use, adjustments can be made according to actual needs.

[0051] like Figures 1 to 5 As shown, in some embodiments of this utility model, the length of the first sleeve 23 is greater than the length of the second sleeve 24;

[0052] Designing first sleeves 23 and second sleeves 24 of different lengths can optimize the cutting position of the filter rod.

[0053] like Figures 1 to 5 As shown, in some embodiments of this utility model, the width of the cutting notch 221 is L, and the thickness of the slitting blade of the slitting machine is d, where L>d;

[0054] This setting is to ensure that the slitting blade 141 can smoothly cut the filter rod at the cutting notch 221 position, and to prevent the slitting blade 141 from disengaging the first sleeve 23 and the second sleeve 24 at both ends of the cutting notch 221, thus avoiding cutting interference.

[0055] like Figures 1 to 5 As shown, in some embodiments of this utility model, a limiting push rod 231 is provided inside the first sleeve 23;

[0056] The limiting push rod 231 is connected to the first sleeve 23 by a thread;

[0057] In addition, a push rod connector 233 is provided on the cutting table 11. Specifically, the push rod connector 233 has the following function: a push rod slider 232 is fixedly provided at the left end of the limiting push rod 231. The push rod slider 232 is rectangular. A groove 235 that matches the push rod slider 232 is provided at the right end of the push rod connector 233. A push rod knob 234 is fixedly provided at the left end of the push rod connector 233. In actual use, by fitting the groove 235 on the push rod connector 233 onto the outside of the push rod slider 232, the limiting push rod 231 can be rotated in the first sleeve 23 by rotating the push rod knob 234, thereby changing the position of the limiting push rod 231 in the first sleeve 23.

[0058] By changing the position of the limiting push rod 231 within the first sleeve 23, the position of the filter rod within the sleeve can be adjusted, thereby adjusting the cutting position of the filter rod.

[0059] This invention provides a small filter rod slitting device. It employs a filter rod sleeve 22 with a specific cutting notch 221. Addressing the core physical characteristics of filter rods—softness, easy deformation, easy wrinkling, and low density—the sleeve provides rigid support and circumferential constraint for the filter rods to be slit. The filter rods are completely contained within the sleeve, preventing their soft fiber structure from bending or wrinkling during slitting, ensuring slitting stability, and thus significantly improving slitting accuracy. Furthermore, the filter rod sleeve 22 forms a semi-enclosed channel environment, confining the small filter rod samples produced during slitting. The design directly solves the problem of sample flying and ejection caused by the low density, cylindrical shape, and cutting kinetic energy of the filter rod during high-speed cutting, either inside the sleeve or near the outlet. Finally, the operator only needs to insert the filter rod into the filter rod sleeve 22 and operate outside the filter rod sleeve 22 (such as pushing the filter rod or triggering the cutting). The fingers do not need to directly contact the cutting area or get close to the high-speed moving slitting blade 141, eliminating the major safety hazard of accidental injury to the operator's fingers by the blade of the slitting blade 141 when manually fixing the soft filter rod for cutting, due to the easy slippage and deformation of the filter rod.

[0060] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A small filter rod cutting device, characterized in that, It includes a slitting assembly (1) and a filter rod placement assembly (2) disposed on the slitting assembly (1); The slitting assembly (1) includes a slitting table (11), a main unit mounting box (12) located at the lower end of the slitting table (11), and a side limiting plate (13) located at the top of the slitting table (11). The main unit mounting box (12) contains a slitting machine. The top surface of the slitting table (11) has a cutting groove (14) for accommodating the slitting blade of the slitting machine. The filter rod placement assembly (2) includes a connector (21) and a plurality of filter rod sleeves (22) located below the connector (21), the filter rod sleeves (22) being used to accommodate filter rods; The filter rod sleeve (22) has a cutting notch (221) that divides the filter rod sleeve (22) into a first sleeve (23) and a second sleeve (24). The two ends of the connector (21) are respectively connected to the first sleeve (23) and the second sleeve (24).

2. A small filter rod cutting device according to claim 1, characterized in that, The lower left side of the edge limiting plate (13) is provided with a limiting groove (131) that is compatible with the filter rod sleeve (22).

3. A small filter rod cutting device according to claim 1, characterized in that, The edge limiting plate (13) has limiting components (15) at both the front and rear ends of its bottom. The limiting component (15) includes a vertical connecting strip (16) and a connecting airbag (17) located at the bottom of the vertical connecting strip (16). The front and rear sides of the cutting table (11) are provided with long grooves (18) that cooperate with the connecting airbag (17).

4. A small filter rod cutting device according to claim 3, characterized in that, The inner surface of the long groove (18) is a friction surface.

5. A small filter rod cutting device according to claim 1, characterized in that, The connector (21) is inverted V-shaped.

6. A small filter rod cutting device according to claim 1, characterized in that, Both ends of the connector (21) are fixed to the first sleeve (23) and the second sleeve (24) by adhesive bonding or welding.

7. A small filter rod cutting device according to claim 1, characterized in that, The length of the first sleeve (23) is greater than the length of the second sleeve (24).

8. A small filter rod cutting device according to claim 1, characterized in that, The width of the cutting notch (221) is L, and the thickness of the slitting blade of the slitting machine is d, where L>d.

9. A small filter rod cutting device according to claim 1, characterized in that, The first sleeve (23) is provided with a limiting push rod (231).

10. A small filter rod cutting device according to claim 9, characterized in that, The limiting push rod (231) is connected to the first sleeve (23) by a thread.

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