Cutter assembly

Abstract

The utility model belongs to the technical field of cutters, and discloses a cutter assembly which comprises a shell, a cutter and a scraping structure, and the shell is provided with an inner cavity and an opening communicated with the inner cavity; the cutter comprises a rotating shaft capable of rotating relative to the shell and a blade arranged on the rotating shaft, the rotating shaft is arranged in the inner cavity, part of the blade extends out of the opening, and the blade is used for cutting an object to be cut; the scraping structure is fixedly arranged on the shell and can make contact with the cutting edge so as to scrape impurities on the surface of the cutting edge, in the cutter assembly, due to the arrangement of the shell, only a necessary opening is reserved for the cutting edge to stretch out, cutting is convenient, most impurities scraped by the scraping structure can be reserved in the inner cavity and cannot drift away to the environment where the cutter assembly is located, and therefore the cutting efficiency is improved. And external dust cannot fall on the cutter and the scraping structure, so that the scraping effect can be ensured, and in addition, by arranging the shell, the cutter and the scraping structure can be prevented from being staggered or damaged due to collision of the external structure.

Description

Technical Field

[0001] This utility model relates to the field of cutting technology, and in particular to cutting assemblies. Background Technology

[0002] Cigarette rolling machines typically include cutters to slit cigarettes, filter rods, and cigarette paper. These cutters are usually circular cutters, which complete the cutting process through high-speed rotation. During the cutting process, a large amount of smoke, paper dust, glue residue, and other impurities are generated. Some of these impurities adhere to the cutter or the rotating shaft connected to it, while others are scattered. The accumulation of impurities on the cutter surface affects the cutting quality of cigarettes, filter rods, and cigarette paper awaiting slit.

[0003] To address this, existing technology provides a waste removal device equipped with a waste removal slider that can scrape off waste adhering to the surface of the cutter. However, the problem with this device is that the cutter is mounted on a slotted plate base, which presents the following issues: firstly, the slotted plate base only serves as a mounting structure for the cutter and cannot prevent impurities generated during cutting from scattering everywhere; secondly, it also allows external dust to float to the cutter, affecting the cutting effect. Utility Model Content

[0004] According to one aspect of the present invention, the present invention provides a cutting blade assembly to solve the problem that the waste removal device in the prior art cannot prevent impurities from floating everywhere, and causes external dust to float to the cutting blade, affecting the cutting effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The cutting blade assembly includes:

[0007] A housing having an inner cavity and an opening communicating with the inner cavity;

[0008] A cutter includes a pivot rotatable relative to the housing and a blade disposed on the pivot, the pivot being disposed in the inner cavity, a portion of the blade extending from the opening, the blade being used to cut an item to be cut;

[0009] A scraping structure is fixedly installed in the housing and can contact the blade to scrape off impurities from the surface of the blade.

[0010] As a preferred embodiment of the cutter assembly, the housing includes a mounting bracket and a cover plate movably disposed on the mounting bracket, the rotating shaft is rotatable relative to the mounting bracket, the inner cavity includes a first cavity located inside the mounting bracket and a second cavity located inside the cover plate, the opening communicates with the second cavity, and the rotating shaft extends from the first cavity to the second cavity.

[0011] As a preferred embodiment of the cutting blade assembly, the scraping structure includes a scraping component mounting base fixedly disposed on the mounting bracket and a scraping component fixedly disposed on the scraping component mounting base. The scraping component is disposed in the second cavity and can contact the blade to scrape off impurities from the surface of the blade.

[0012] As a preferred embodiment of the cutting blade assembly, the scraper mounting base has two mounting portions spaced apart, and two scrapers are provided. The two scrapers are respectively disposed in the mounting portions, and the two scrapers can respectively contact the two side surfaces of the blade.

[0013] As a preferred embodiment of the cutter assembly, the cover plate is rotatably connected to the mounting bracket via a hinge, and the opening is located on the side of the cover plate away from the hinge.

[0014] As a preferred embodiment of the cutter assembly, the cover plate is also provided with a handle located on the side of the cover plate away from the hinge.

[0015] As a preferred embodiment of the cutting assembly, the housing also has a negative pressure interface communicating with the inner cavity, and the cutting assembly further includes a negative pressure dust removal structure for drawing out gas and impurities from the inner cavity through the negative pressure interface.

[0016] As a preferred embodiment of the cutting blade assembly, the inner wall of the housing is further provided with a guide groove, and the negative pressure interface is connected to the guide groove.

[0017] As a preferred embodiment of the cutter assembly, the negative pressure interface is located at the end of the housing away from the opening.

[0018] As a preferred embodiment of the cutting blade assembly, the housing is provided with an observation hole, and the observation hole is fitted with a transparent viewing window.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a cutting blade assembly, including a housing, a cutting blade, and a scraping structure. The housing has an inner cavity and an opening communicating with the inner cavity. The cutting blade includes a rotating shaft that can rotate relative to the housing and a blade disposed on the rotating shaft. The rotating shaft is disposed in the inner cavity, and part of the blade extends out from the opening. The blade is used to cut the object to be cut. The rotating shaft can rotate relative to the housing to drive the blade to rotate, thereby cutting the object to be cut. The scraping structure is fixedly disposed in the housing and can contact the blade to scrape off impurities on the surface of the blade. In this cutting blade assembly, due to the housing, only the necessary opening is retained for the blade to extend, which facilitates cutting. Most of the impurities scraped off by the scraping structure will remain in the inner cavity and will not drift into the environment where the cutting blade assembly is located. External dust will also not fall onto the cutting blade and the scraping structure, thus ensuring the scraping effect. In addition, the housing also prevents the cutting blade and the scraping structure from being misaligned or damaged due to collisions with external structures. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the cutter assembly in an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a cross-sectional view of the cutting assembly in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of a first partial structure of the cutter assembly in an embodiment of this utility model;

[0025] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 This is a schematic diagram of the second partial structure of the cutter assembly in an embodiment of this utility model.

[0027] In the picture:

[0028] 1. Housing; 101. Inner cavity; 1011. First cavity; 1012. Second cavity; 102. Opening; 103. Negative pressure interface; 1031. Guide groove; 11. Mounting bracket; 12. Cover plate; 121. Handle; 13. Hinge; 14. Transparent window;

[0029] 2. Cutting blade; 21. Shaft; 22. Blade; 23. Machine base;

[0030] 3. Scraping structure; 31. Scraping component mounting base; 311. Mounting part; 32. Scraping component;

[0031] 4. Negative pressure dust removal pipe. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] During the cutting process of cigarettes, filter rods, and cigarette paper, a large amount of impurities such as smoke dust, paper dust, and glue residue are generated. Some of these impurities adhere to the cutter or the rotating shaft connected to the cutter, while others are scattered everywhere. The accumulation of impurities on the cutter surface affects the cutting quality of cigarettes, filter rods, and cigarette paper awaiting cutting. To address this, existing technology provides a waste removal device with a waste removal slider that can scrape off the waste adhering to the cutter surface. However, this device has a problem: the cutter is mounted on a slotted plate base, which presents the following issues: firstly, the slotted plate base only serves as a mounting structure for the cutter and cannot prevent the impurities generated during cutting from scattering everywhere; secondly, it also allows external dust to float to the cutter, affecting the cutting effect.

[0037] In response, this embodiment provides a cutting assembly to solve the problem that the waste removal device in the prior art cannot prevent impurities from floating everywhere, and causes external dust to float to the cutting edge, affecting the cutting effect. It can be used in the field of cutting technology, specifically in cigarette making machines, and for cutting cigarette sticks, filter rods and cigarette paper and other materials waiting to be cut.

[0038] Reference Figures 1-6 The cutting assembly includes a housing 1, a cutting blade 2, and a scraping structure 3. The housing 1 has an inner cavity 101 and an opening 102 communicating with the inner cavity 101. The cutting blade 2 includes a rotating shaft 21 rotatable relative to the housing 1 and a blade 22 disposed on the rotating shaft 21. The rotating shaft 21 is disposed in the inner cavity 101, and part of the blade 22 extends from the opening 102. The blade 22 is used to cut the item to be cut. The rotating shaft 21 can rotate relative to the housing 1 to drive the blade 22 to rotate, thereby cutting the item to be cut. In this embodiment, a base 23 is also provided. The base 23 is mounted on the housing 1, and the rotating shaft 21 is mounted on the base 23. The base 23 is used to drive the rotating shaft 21 to rotate relative to the housing 1. In addition, in this embodiment, the item to be cut is a cigarette, filter rod, or cigarette paper, etc., while in other embodiments, the item to be cut can also be printing paper, packaging paper, etc. The scraping structure 3 is fixedly disposed on the housing 1 and can contact the blade 22 to scrape off impurities on the surface of the blade 22. In this cutting assembly, due to the design of the housing 1, only the necessary opening 102 is retained for the blade 22 to extend, which facilitates cutting. Most of the impurities scraped off by the scraping structure 3 will remain in the inner cavity 101 and will not drift to the environment where the cutting assembly is located. Furthermore, external dust will not fall onto the cutting blade 2 and the scraping structure 3, thus ensuring the scraping effect. In addition, the design of the housing 1 can also prevent the cutting blade 2 and the scraping structure 3 from being misaligned or damaged due to collisions with external structures.

[0039] Continue to refer to Figures 1-6The housing 1 includes a mounting bracket 11 and a cover plate 12 movably disposed on the mounting bracket 11. The rotating shaft 21 is rotatable relative to the mounting bracket 11. The inner cavity 101 includes a first cavity 1011 located inside the mounting bracket 11 and a second cavity 1012 located inside the cover plate 12. The opening 102 communicates with the second cavity 1012. The rotating shaft 21 extends from the first cavity 1011 to the second cavity 1012, so that the main body of the blade 22 is disposed in the second cavity 1012, and a portion of the blade 22 extends out from the opening 102. The extended portion of the blade 22 is used to cut the item to be cut.

[0040] Continue to refer to Figures 1-6 The scraping structure 3 includes a scraper mounting base 31 fixedly mounted on the mounting frame 11 and a scraper 32 fixedly mounted on the scraper mounting base 31. The scraper 32 is disposed in the second cavity 1012 and can contact the blade 22 to scrape away impurities from the surface of the blade 22. Specifically, the scraper mounting base 31 extends from the first cavity 1011 to the second cavity 1012. The scraper mounting base 31 can be bolted to the inner wall of the mounting frame 11, making the scraper mounting base 31 detachably connected to the inner wall of the mounting frame 11.

[0041] Continue to refer to Figures 1-6 The scraper mounting base 31 has two mounting portions 311 spaced apart. There are two scrapers 32. The two scrapers 32 are respectively disposed on the mounting portions 311, and the two scrapers 32 can contact the two sides of the blade 22 respectively, so as to scrape the two sides of the blade 22 simultaneously to remove impurities from the two sides of the blade 22.

[0042] Continue to refer to Figures 1-6 The cover plate 12 is rotatably connected to the mounting bracket 11 via a hinge 13, and the opening 102 is located on the side of the cover plate 12 away from the hinge 13. By rotating the cover plate 12 onto the mounting bracket 11, the first cavity 1011 can be opened. After rotating the cover plate 12 to open the first cavity 1011, the blade 22, the scraping structure 3, and part of the rotating shaft 21 can extend out of the first cavity 1011, exposing the above structures and making it convenient for the user to clean or replace the blade 22 or the scraping structure 3.

[0043] Continue to refer to Figures 1-6 The cover plate 12 is also provided with a handle 121 to facilitate the operator to open or close the cover plate 12. In addition, the handle 121 is located on the side of the cover plate 12 away from the hinge 13, so as to facilitate the operator to apply force.

[0044] Continue to refer to Figures 1-6The housing 1 also has a negative pressure interface 103 communicating with the inner cavity 101. The cutting blade assembly also includes a negative pressure dust removal structure, which generates negative pressure to draw out gas and impurities from the inner cavity 101 through the negative pressure interface 103. Thus, after the impurities on the surface of the blade 22 are scraped off by the scraping structure 3, the impurities can be drawn out of the inner cavity 101 through the negative pressure dust removal structure, keeping the inner cavity 101 clean and preventing excessive accumulation of impurities in the inner cavity 101, which would affect the cutting performance of the blade 22. Specifically, the negative pressure dust removal structure is connected to the housing 1 through a negative pressure dust removal pipe 4, the inner cavity of which is connected to the negative pressure interface 103. The negative pressure dust removal structure is a common structure in the art, and its negative pressure generation principle and specific structure will not be described in detail here.

[0045] Optionally, the inner wall of the housing 1 is further provided with a guide groove 1031, and the negative pressure port 103 is connected to the guide groove 1031, through which gas and impurities can be guided into the negative pressure port 103. Optionally, the groove wall of the guide groove 1031 is flush with part of the hole wall of the negative pressure port 103 and part of the pipe wall of the negative pressure dust removal pipe 4, which can reduce the resistance of gas and impurities when flowing in the inner cavity of the guide groove 1031, the negative pressure port 103 and the negative pressure dust removal pipe 4.

[0046] Continue to refer to Figures 1-6 The negative pressure port 103 is located at the end of the housing 1 away from the opening 102. Specifically, the negative pressure port 103 is located at the end of the mounting bracket 11 away from the cover plate 12. The negative pressure port 103 is connected to the first cavity 1011. This arrangement allows impurities to be drawn into the end of the housing 1 away from the opening 102 as much as possible, that is, into the first cavity 1011, to prevent impurities from accumulating in the second cavity 1012 and affecting the operation of the blade 22. At the same time, it prevents impurities from floating out of the inner cavity 101 through the opening 102 connected to the second cavity 1012.

[0047] Continue to refer to Figures 1-6 The housing 1 is provided with an observation hole, and a transparent window 14 is installed in the observation hole. In this embodiment, the observation hole is located on the cover plate 12, and the transparent window 14 is located on the cover plate 12, so that the handle 121 and the transparent window 14 are all concentrated on the cover plate 12. The blade 22, the scraping structure 3, and part of the rotating shaft 21 are all located in the second cavity 1012. After rotating the cover plate 12 to open the first cavity 1011, the blade 22, the scraping structure 3, and part of the rotating shaft 21 can extend out of the first cavity 1011. That is to say, the above structures are all located near the cover plate 12, and the operator can stand near the cover plate 1 to observe or operate the above structures. The base 23 and the negative pressure dust removal pipe 4 are both set on the mounting frame 11 to facilitate the connection of other equipment. In order to facilitate the connection of the negative pressure dust removal pipe 4, the negative pressure dust removal structure can also be set near the mounting frame 11. In other embodiments, the observation hole can also be opened on the mounting frame 11, and the transparent window 14 can be set on the mounting frame 11.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cutter assembly, characterized by, include: The housing (1) has an inner cavity (101) and an opening (102) communicating with the inner cavity (101); The cutter (2) includes a pivot (21) rotatable relative to the housing (1) and a blade (22) disposed on the pivot (21), the pivot (21) being disposed in the inner cavity (101), a portion of the blade (22) extending from the opening (102), the blade (22) being used to cut the item to be cut; The scraping structure (3) is fixedly disposed on the housing (1) and can contact the blade (22) to scrape off impurities on the surface of the blade (22).

2. The cutter assembly of claim 1, wherein The housing (1) includes a mounting bracket (11) and a cover plate (12) movably disposed on the mounting bracket (11). The rotating shaft (21) is rotatable relative to the mounting bracket (11). The inner cavity (101) includes a first cavity (1011) located inside the mounting bracket (11) and a second cavity (1012) located inside the cover plate (12). The opening (102) communicates with the second cavity (1012). The rotating shaft (21) extends from the first cavity (1011) to the second cavity (1012).

3. The cutter assembly of claim 2, wherein, The scraping structure (3) includes a scraping component mounting base (31) fixedly mounted on the mounting bracket (11) and a scraping component (32) fixedly mounted on the scraping component mounting base (31). The scraping component (32) is disposed in the second cavity (1012) and can contact the blade (22) to scrape off impurities from the surface of the blade (22).

4. The cutter assembly of claim 3, wherein The scraper mounting base (31) has two mounting portions (311) spaced apart. There are two scrapers (32), which are respectively disposed on the mounting portions (311) and can respectively contact the two side surfaces of the blade (22).

5. The cutter assembly of claim 2, wherein The cover plate (12) is rotatably connected to the mounting bracket (11) via a hinge (13), and the opening (102) is located on the side of the cover plate (12) away from the hinge (13).

6. The cutter assembly of claim 5, wherein, The cover plate (12) is also provided with a handle (121), which is located on the side of the cover plate (12) away from the hinge (13).

7. The cutter assembly of any one of claims 1-6, wherein, The housing (1) also has a negative pressure port (103) communicating with the inner cavity (101), and the cutter assembly further includes a negative pressure dust removal structure, which is used to draw out the gas and impurities in the inner cavity (101) through the negative pressure port (103).

8. The cutter assembly of claim 7, wherein, The inner wall of the housing (1) is also provided with a guide groove (1031), and the negative pressure port (103) is connected to the guide groove (1031).

9. The cutting assembly according to claim 7, characterized in that, The negative pressure port (103) is located at one end of the housing (1) away from the opening (102).

10. The cutter assembly of any one of claims 1-6, wherein, The housing (1) is provided with an observation hole, and the observation hole is equipped with a transparent viewing window (14).

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