Cutter cleaning device and cigarette making machine

Abstract

The invention relates to the technical field of cutter cleaning, in particular to a cutter cleaning device and a cigarette making machine. The cutter cleaning device comprises a supporting plate, an arm plate, a scraper and an elastic piece, wherein the supporting plate is configured to be installed on a support of the cigarette making machine. The supporting plate is rotationally provided with two oppositely-arranged arm plates. A glue removing face is arranged on the periphery of the scraper, and the first end of each arm plate extends out of the supporting plate and is provided with the scraper. An elastic piece is arranged between the second end of each arm plate and the supporting plate, so that the corresponding arm plate is tensioned through the elastic pieces, the first ends of the two arm plates always have the tendency of getting close to each other, and the adhesive removing faces of the two scrapers can clamp the cutting edge of a cutter of the cigarette making machine. The cigarette making machine comprises the cutter cleaning device, when the cutter rotates, the glue removing faces of the two scrapers can scrape away accumulated glue on the two sides of the cutting edge of the cutter, the cutting quality of the cigarette making machine on the high-hardness filter tip is improved, and the hair opening defect of the cut high-hardness filter tip is overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of cutter cleaning, and particularly relates to a cutter cleaning device and a cigarette making machine. Background Art

[0002] In the production process of cigarettes, alloy cutters (slitting circular cutters) are usually used to cut high-hardness filter tips to form finished cigarette rods. The high-hardness filter tips contain environmentally friendly and easily degradable glue. When the alloy cutter contacts the high-hardness filter tip during high-speed rotation, the high temperature causes the glue to easily melt and accumulate on the cutting edge of the alloy cutter. It is difficult to remove the accumulated glue on the cutting edge of the alloy cutter by means such as blowing, resulting in a high defect rate of the cut high-hardness filter tip and reducing the cutting quality of the high-hardness filter tip. Summary of the Invention

[0003] The purpose of the present invention is to provide a cutter cleaning device and a cigarette making machine to remove the accumulated glue on the cutting edge of the cutter in the cigarette making machine, improve the cutting quality of the high-hardness filter tip by the cigarette making machine, and improve the defect of the cut edge of the high-hardness filter tip.

[0004] To achieve this purpose, the technical solution adopted by the present invention is as follows:

[0005] A cutter cleaning device, comprising:

[0006] A support plate, which is configured to be installed on the bracket of the cigarette making machine;

[0007] An arm plate, two relatively arranged arm plates are rotatably installed on the support plate;

[0008] A scraper, a glue-removing surface is arranged on the outer periphery of the scraper, and the first end of each arm plate extends out of the support plate and is installed with the scraper;

[0009] An elastic member, an elastic member is arranged between the second end of each arm plate and the support plate to tighten the corresponding arm plate through the elastic member, so that the first ends of the two arm plates always have a tendency to approach each other, and the glue-removing surfaces of the two scrapers can clamp the cutting edge of the cutter of the cigarette making machine.

[0010] As an optional solution, the glue-removing surface includes:

[0011] A glue-scraping inclined surface, the glue-scraping inclined surfaces of the two scrapers can clamp the cutting edge of the cutter;

[0012] A glue-discharging flat surface, which is connected to the glue-scraping inclined surface at an angle, and the glue-discharging flat surfaces of the two scrapers are in close contact.

[0013] As an alternative, the cutting edge of the cutting knife includes two cutting edge inclined surfaces symmetrically arranged along the axial direction, and the inclined angles and inclined directions of the glue scraping inclined surface and the corresponding cutting edge inclined surface are equal, so that the two glue scraping inclined surfaces can be respectively attached to the corresponding cutting edge inclined surfaces.

[0014] As an alternative, the glue discharging plane is provided with a glue discharging groove. The glue discharging plane includes an inlet end connected at an angle to the glue scraping inclined surface and an outlet end far from the glue scraping inclined surface. Both ends of the glue discharging groove respectively penetrate and extend to the inlet end and the outlet end.

[0015] As an alternative, a plurality of glue removing surfaces connected in sequence at an angle are arranged on the outer periphery of the scraper. The scraper can rotate circumferentially on the corresponding support plate, so that the glue removing surfaces of one scraper and the glue removing surfaces of the other scraper can respectively clamp the cutting edge of the cutting knife in a one-to-one correspondence.

[0016] As an alternative, three glue removing surfaces connected end to end in sequence at an angle of 120° are arranged on the outer periphery of the scraper.

[0017] As an alternative, the cutting knife cleaning device further includes a lifting column. One end of the support plate is provided with a mounting hole. One end of the lifting column can be mounted on the bracket, and the other end of the lifting column is axially adjustably inserted into the mounting hole.

[0018] As an alternative, the cutting knife cleaning device further includes a blowing mechanism, and the air outlet of the blowing mechanism faces the position where the cutting edge is clamped in the glue removing surface.

[0019] As an alternative, a first fixing column is installed on the support plate, and the first fixing column is located between the two arm plates; one ends of the two elastic members are both connected to the first fixing column.

[0020] A cigarette making machine includes the above-mentioned cutting knife cleaning device.

[0021] The beneficial effects of the present invention are as follows:

[0022] The cutting knife cleaning device proposed by the present invention includes a support plate, arm plates, scrapers and elastic members. Scrapers are installed at the first ends of the two arm plates. The second ends of the two arm plates are tightened by their respective elastic members and the first ends of the two arm plates are made to approach each other. The scrapers installed at the two first ends approach each other and the glue removing surfaces of the two scrapers clamp the cutting edge of the cutting knife. When the cutting knife rotates, the glue removing surfaces of the two scrapers can scrape off the accumulated glue on both sides of the cutting edge, improving the cutting quality of the cigarette making machine for high-hardness filter tips and improving the defect of rough edges of the cut high-hardness filter tips. Description of the Drawings

[0023] Figure 1It is the front view of the cutter cleaning device provided by the embodiment of the present invention;

[0024] Figure 2 It is the structural schematic diagram of the cutter cleaning device provided by the embodiment of the present invention;

[0025] Figure 3 It is the structural schematic diagram of the arm plate provided by the embodiment of the present invention;

[0026] Figure 4 It is the structural schematic diagram of the scraper and the cutter during degumming provided by the embodiment of the present invention.

[0027] The names and labels of the components in the figure are as follows:

[0028] 10. Cutter; 101. Edge bevel;

[0029] 1. Support plate; 11. Main body plate; 111. Kidney-shaped hole; 12. Base; 121. Mounting hole; 122. Partition groove; 123. Through hole; 2. Arm plate; 21. First hole; 22. Second hole; 23. Third hole; 3. Scraper; 31. Degumming surface; 311. Scraping gum bevel; 312. Glue discharging plane; 4. Elastic member; 5. Lifting column; 6. First fixing column; 7. Second fixing column. Detailed implementation manners

[0030] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of convenience of description, only the parts related to the present invention are shown in the drawings, rather than all of them.

[0031] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include contact between the first and second features not directly but through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", "left", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific embodiments.

[0035] This embodiment provides a cigarette making machine, which includes a cutting knife, and the cutting knife is a circular (also known as drum-shaped) alloy cutting knife that can cut high-hardness filter tips. Since the cigarette making machine is a prior art, other components and working processes of the cigarette making machine will not be elaborated.

[0036] Currently, there is an environmentally friendly and easily degradable glue in the high-hardness filter tip. When the alloy cutting knife contacts the high-hardness filter tip during high-speed rotation, the high temperature generated causes the glue to be easily melted and accumulate on the blade of the alloy cutting knife. It is difficult to remove the accumulated glue on the blade of the alloy cutting knife even by means such as blowing, resulting in a high defect rate of the cut high-hardness filter tip and reducing the cutting quality of the alloy cutting knife for the high-hardness filter tip.

[0037] To solve the above problems, as Figure 1 and Figure 2As shown in the figure, this embodiment proposes a cutter cleaning device. The cutter cleaning device includes a support plate 1, an arm plate 2, a scraper 3, and an elastic member 4. The support plate 1 is configured to be installed on the bracket of a cigarette machine. Two relatively arranged arm plates 2 are rotatably installed on the support plate 1. A glue-removing surface 31 is provided on the outer periphery of the scraper 3. The first end of each arm plate 2 extends out of the support plate 1 and is installed with a scraper 3. An elastic member 4 is provided between the second end of each arm plate 2 and the support plate 1 to tighten the corresponding arm plate 2 through the elastic member 4, so that the first ends of the two arm plates 2 always tend to approach each other, and the glue-removing surfaces 31 of the two scrapers 3 can clamp the edge of the cutter 10 of the cigarette machine. Scrapers 3 are installed at the first ends of both arm plates 2. The second ends of the two arm plates 2 are tightened by their respective elastic members 4 to make the first ends of the two arm plates 2 approach each other. The scrapers 3 installed at the two first ends approach each other and the glue-removing surfaces 31 of the two scrapers 3 clamp the edge of the cutter 10. When the cutter 10 rotates, the glue-removing surfaces 31 of the two scrapers 3 can scrape off the accumulated glue on both sides of the edge, improving the cutting quality of the cigarette machine for high-hardness filter tips and improving the defect of rough edges of the high-hardness filter tips after cutting.

[0038] Specifically, the cutter cleaning device further includes a lifting column 5. An installation hole 121 is opened at one end of the support plate 1. One end of the lifting column 5 can be installed on the bracket, and the other end of the lifting column 5 is axially adjustably inserted into the installation hole 121. One end of the lifting column 5 is fixedly installed on the bracket below the cutter 10, and the other end of the lifting column 5 is inserted into the installation hole 121 to adjust the height of the support plate 1, so that the scraper 3 is lifted to the edge position of the cutter 10 and the two scrapers 3 clamp the edge of the cutter 10. As Figure 4 shown, the edge of the cutter 10 includes two axially symmetrically arranged edge inclined surfaces 101, and the inclination directions of the edge inclined surfaces 101 are opposite. The accumulated glue on the two edge inclined surfaces 101 is scraped off by the glue-removing surfaces 31 of the two scrapers 3 respectively.

[0039] As Figure 1 and Figure 2As shown, the support plate 1 includes a main body plate 11 and a base 12. One end of the main body plate 11 is provided with two kidney-shaped holes 111, and the base 12 is correspondingly provided with two through holes 123. One end of the main body plate 11 is disposed on the base 12, and the kidney-shaped holes 111 are in one-to-one correspondence and communication with the through holes 123 and are locked by fasteners such as bolts, so that the main body plate 11 and the base 12 are fixedly connected. Two arm plates 2 are installed at one end of the main body plate 11 away from the base 12. The base 12 is provided with a mounting hole 121 and a partition groove 122, and the partition groove 122 is L-shaped. One end of the partition groove 122 communicates with the mounting hole 121, and the other end of the partition groove 122 penetrates through one side of the base 12, dividing the base 12 into two movably connected parts, and making the mounting hole 121 an unclosed hole, so that the inner diameter of the mounting hole 121 is adjustable, facilitating the smooth insertion or extraction of the lifting column 5 into or out of the mounting hole 121 and facilitating the adjustment of the height of the scraper 3. When the lifting column 5 is adjusted in place in the mounting hole 121, only by screwing the two movably connected parts of the base 12 together can the mounting hole 121 tightly hold the lifting column 5, realizing the reliable connection between the base 12 and the lifting column 5.

[0040] As Figure 2 and Figure 3 shown, the arm plate 2 is generally L-shaped and is provided with a first hole 21, a second hole 22 and a third hole 23 through it. Among them, a first hole 21 is provided at one end of the arm plate 2, a third hole 23 is provided at the second end of the arm plate 2, and the second hole 22 is located between the first hole 21 and the second hole 22. The scraper 3 is fixedly installed in the first hole 21 by screws. The arm plate 2 is pivotally connected to the support plate 1 through a rotating shaft, and the rotating shaft sequentially passes through the second hole 22 and the support plate 1, so that the arm plate 2 can rotate relative to the support plate 1 around the rotating shaft. The support plate 1 is provided with a first fixing column 6, and the first fixing column 6 is located between the two arm plates 2. One end of each of the two elastic members 4 is connected to the first fixing column 6. A second fixing column 7 is fixedly installed in the third hole 23, and the other ends of the two elastic members 4 are respectively fixedly connected to the corresponding second fixing columns 7. The two elastic members 4 are respectively stretched and installed between the first fixing column 6 and the corresponding second fixing column 7. In this embodiment, the elastic member 4 is a spring, and the spring structure is simple and convenient for disassembly and assembly. When the spring is installed between the first fixing column 6 and the corresponding second fixing column 7, the spring is always in a stretched state, so that the spring applies a pulling force to the second end of the arm plate 2 to pull the arm plate 2 to rotate relative to the support plate 1 around the corresponding rotating shaft, and the rotating directions of the two arm plates 2 are opposite, so that the scrapers 3 installed at the first ends of the two arm plates 2 always have a tendency to approach each other, and the degumming surfaces 31 of the two scrapers 3 are in close contact. In other embodiments, the elastic member 4 can also be an elastic component such as a tension spring, and no specific limitation is made here.

[0041] As Figure 1 and Figure 2As shown in the figure, a plurality of deburring surfaces 31 that are sequentially connected at an angle are provided on the outer periphery of the scraping knife 3. The scraping knife 3 can rotate circumferentially on the corresponding support plate 1 so that the deburring surfaces 31 of one scraping knife 3 are in one-to-one correspondence with the deburring surfaces 31 of another scraping knife 3 to clamp the edge of the cutting knife 10. By providing a plurality of deburring surfaces 31 on the outer periphery of the scraping knife 3, when one of the deburring surfaces 31 is worn and the deburring effect decreases, the circumferential rotation of the scraping knife 3 is used to make the non-worn deburring surface 31 fit the corresponding edge inclined surface 101, thereby realizing the rapid replacement of the deburring surface 31 without replacing the cutting knife 10, reducing the cost.

[0042] In this embodiment, three deburring surfaces 31 that are sequentially connected end to end at a 120° angle are provided on the outer periphery of the scraping knife 3. Through the above setting, the scraping knife 3 is a triangular plate, and three deburring surfaces 31 are provided on the circumferential outer side of the triangular plate, simplifying the structure of the scraping knife 3 and reducing the processing difficulty and production cost of the scraping knife 3. In other embodiments, the scraping knife 3 can also be other polygonal plates, which are not specifically limited here.

[0043] Specifically, the scraping knife 3 is fixedly installed at the first end of the arm plate 2 by screws to ensure that the two scraping knives 3 clamp the edge of the cutting knife 10, and the deburring surfaces 31 of the two scraping knives 3 are respectively attached to the two edge inclined surfaces 101 of the edge, avoiding the position deflection of the scraping knife 3 and improving the stability of the deburring process. When the deburring surface 31 for deburring operation is worn, loosen the screws on the scraping knife 3, move the two arm plates 2 away from each other to avoid interference when the two scraping knives 3 rotate circumferentially, and then rotate the two scraping knives 3 circumferentially by 120° relative to the corresponding arm plates 2 respectively, so that the non-worn deburring surfaces 31 of the two scraping knives 3 are oppositely arranged, loosen the arm plates 2 and tighten the two scraping knives 3 on the corresponding arm plates 2 again, and the replacement operation of the deburring surface 31 can be completed.

[0044] As Figure 4 shown, the deburring surface 31 includes a scraping inclined surface 311 and a glue discharging plane 312. The scraping inclined surfaces 311 of the two scraping knives 3 can clamp the edge of the cutting knife 10. The glue discharging plane 312 is connected to the scraping inclined surface 311 at an angle, and the glue discharging planes 312 of the two scraping knives 3 are in close contact. The scraping inclined surface 311 forms the edge of the scraping knife 3 to scrape the accumulated glue on the two edge inclined surfaces 101 of the cutting knife 10. Under the tension of the elastic member 4, the glue discharging planes 312 of the two scraping knives 3 are in close contact to lock the relative positions of the two scraping knives 3, so that the scraping inclined surfaces 311 of the two scraping knives 3 can clamp the edge of the cutting knife 10 and ensure the deburring effect of the scraping knife 3.

[0045] Specifically, the inclination angles and inclination directions of the scraping inclined surfaces 311 and the corresponding cutting-edge inclined surfaces 101 are equal, so that the two scraping inclined surfaces 311 can respectively adhere tightly to the corresponding cutting-edge inclined surfaces 101. Through the above settings, the scraping inclined surfaces 311 are adapted to the corresponding cutting-edge inclined surfaces 101, and the scraping inclined surfaces 311 are completely attached to the corresponding cutting-edge inclined surfaces 101, increasing the contact area between the blade 3 and the cutting edge of the cutting tool 10, and further improving the glue scraping effect of the blade 3.

[0046] In this embodiment, the cutting-edge angle of the cutting-edge inclined surface 101 of the cutting tool 10 is 15°, and the included angle α between the scraping inclined surface 311 and the glue-discharging plane 312 is also 15°, so that the scraping inclined surface 311 is completely attached to the corresponding cutting-edge inclined surface 101. In other embodiments, the size of the included angle α can also be flexibly adjusted according to the cutting-edge angle of the cutting-edge inclined surface 101 of the cutting tool 10, as long as it is ensured that the scraping inclined surface 311 is completely attached to the corresponding cutting-edge inclined surface 101.

[0047] Furthermore, the glue-discharging plane 312 is provided with a glue-discharging groove. The glue-discharging plane 312 includes an inlet end connected at an angle to the scraping inclined surface 311 and an outlet end far from the scraping inclined surface 311. Both ends of the glue-discharging groove respectively penetrate and extend to the inlet end and the outlet end. By providing the glue-discharging groove, the accumulated glue scraped by the scraping inclined surface 311 can enter the glue-discharging groove from the inlet end and be discharged from the outlet end, so that the scraped accumulated glue can be quickly discharged from the blade 3 through the glue-discharging groove, avoiding the accumulated glue scraped from accumulating at the scraping inclined surface 311 and affecting the glue scraping efficiency of the blade 3.

[0048] In this embodiment, the cutting tool cleaning device further includes a blowing mechanism, and the air outlet of the blowing mechanism faces the position where the cutting edge is clamped in the glue scraping surface 31. Through the above settings, it is possible to blow air to the contact area between the blade 3 and the cutting edge of the cutting tool 10, facilitating the blowing off of the scraped accumulated glue from the blade 3, and further improving the glue scraping efficiency of the blade 3. At the same time, the blowing mechanism can also cool the cutting tool 10 and the blade 3 by air cooling, avoiding abnormal temperature rise of the cutting tool 10 and the blade 3, and improving the protection of the cutting tool 10 and the blade 3.

[0049] It should be noted that the blade 3 in this embodiment is made of tungsten alloy. Tungsten alloy has both high hardness, wear resistance and corrosion resistance, and can maintain stable hardness at high temperatures, so as to be in contact with the cutting edge of the rotating cutting tool 10 for a long time, extending the service life of the blade 3. In other embodiments, the blade 3 can also be made of other materials, as long as it can scrape the accumulated glue on the cutting edge of the cutting tool 10, and no specific limitation is made here.

[0050] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, various changes and modifications can be made to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Cutting tool cleaning device, characterized in that, Comprising: A support plate (1), the support plate (1) being configured to be mounted on a bracket of a cigarette making machine; Arm plates (2), two relatively arranged arm plates (2) being rotatably mounted on the support plate (1); Scraping knives (3), a glue removing surface (31) being provided on the outer periphery of each scraping knife (3), and the first end of each arm plate (2) extending out of the support plate (1) and mounting the scraping knife (3); Elastic members (4), elastic members (4) being provided between the second end of each arm plate (2) and the support plate (1) to tension the corresponding arm plate (2) through the elastic members (4), so that the first ends of the two arm plates (2) always tend to approach each other, and the glue removing surfaces (31) of the two scraping knives (3) can clamp the edge of a cutter (10) of the cigarette making machine.

2. The cutter cleaning device according to claim 1, wherein The glue removing surface (31) comprises: Glue scraping inclined surfaces (311), the glue scraping inclined surfaces (311) of the two scraping knives (3) being able to clamp the edge of the cutter (10); Glue discharging flat surfaces (312), being connected to the glue scraping inclined surfaces (311) at an angle, and the glue discharging flat surfaces (312) of the two scraping knives (3) being in close contact with each other.

3. The cutter cleaning device according to claim 2, wherein The edge of the cutter (10) comprises two axially symmetrically arranged edge inclined surfaces (101), and the inclination angles and inclination directions of the glue scraping inclined surfaces (311) and the corresponding edge inclined surfaces (101) are equal, so that the two glue scraping inclined surfaces (311) can respectively be in close contact with the corresponding edge inclined surfaces (101).

4. The cutter cleaning device according to claim 2, characterized in that, The glue discharging flat surface (312) is provided with a glue discharging groove, the glue discharging flat surface (312) comprises an inlet end connected to the glue scraping inclined surface (311) at an angle and an outlet end far from the glue scraping inclined surface (311), and both ends of the glue discharging groove respectively penetrate and extend to the inlet end and the outlet end.

5. The cutter cleaning device according to claim 1, characterized in that, A plurality of the glue removing surfaces (31) connected to each other at an angle are provided on the outer periphery of the scraping knife (3), and the scraping knife (3) can rotate circumferentially on the corresponding support plate (1) so that the glue removing surfaces (31) of one scraping knife (3) and the glue removing surfaces (31) of the other scraping knife (3) respectively clamp the edge of the cutter (10).

6. The cutter cleaning device according to claim 5, wherein, Three glue removing surfaces (31) connected end to end in sequence at an angle of 120° are provided on the outer periphery of the scraping knife (3).

7. The cutter cleaning device according to any one of claims 1 to 6, characterized in that The cutter cleaning device further comprises a lifting column (5), an installation hole (121) being formed at one end of the support plate (1), one end of the lifting column (5) being able to be mounted on the bracket, and the other end of the lifting column (5) being axially position-adjustably inserted into the installation hole (121).

8. The cutter cleaning device according to any one of claims 1 to 6, characterized in that The cutter cleaning device further comprises a blowing mechanism, and the air outlet of the blowing mechanism faces the position where the edge is clamped in the glue removing surface (31).

9. The cutter cleaning device according to any one of claims 1 to 6, characterized in that, The support plate (1) is mounted with a first fixing column (6), the first fixing column (6) being located between the two arm plates (2); and one ends of the two elastic members (4) are both connected to the first fixing column (6).

10. A cigarette making machine, characterized in that, Comprising the cutter cleaning device according to any one of claims 1 to 9.

Images