Scraper knife device for cleaning cutting circular knife of cigarette making machine
By designing a blade device for cutting round knife by cigarette machine, the problem of accumulation of scale in cutting round knife is solved, automatic cleaning of scale is achieved, and cutting quality and equipment operation efficiency are improved.
Patent Information
- Application Number
- CN202420362066.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-02-27
AI Technical Summary
The round cutting knife of the cigarette machine is prone to accumulate stains during use, affecting the cutting quality of the cigarette support filter section, and leading to failures such as erectile dysfunctions on the cutting end face, defects, etc.
A blade device is designed, including a blade support, a connecting shaft and a blade. The blade is attached to both sides of the cutting round knife. By adjusting the height of the blade support, automatic cleaning of the cutting round knife grease is achieved.
Effectively remove the grease on the cutting round knife, prevent the grease from accumulating in the blade surface and drum joints, improve the cutting quality of the cigarette support filter section, and avoid faults such as cutting end face matt mouths and defects.
Smart Images
Figure CN222570964U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cigarette equipment cleaning, and more specifically to a scraper device for cleaning a circular cutting knife of a cigarette making machine. Background Art
[0002] The circular cutting knife is a component of the ZJ17 and ZJ118 cigarette making machines in the cigarette production process, and usually includes the first circular cutting knife, the filter cutting knife and the final circular cutting knife. The first circular cutting knife is used to cut the double-length cigarettes passed by the spider hand into cigarettes of equal length. The filter cutting knife is used to cut filter rods, and the main function of the final circular cutting knife is to cut the double-length filter cigarettes into single-length filter cigarettes that meet the standard length. The cleanliness of the final circular cutting knife is closely related to the appearance quality of the cigarette. If the circular knife cutting edge is not ground well, the filter end face of the cigarette will be rough, damaged, uneven, and other defects, which will make the relevant quality indicators of the cigarette low and reduce the operating efficiency of the equipment.
[0003] The final cutting circular knife assembly of traditional cigarette making equipment includes a knife holder, a round steel knife, a fixing device and a knife sharpening device. The round steel knife is usually used in conjunction with a knife sharpening wheel. The feed rate of the knife sharpening wheel is manually adjusted to adjust the sharpness of the round steel knife edge, thereby ensuring the quality of cigarette cutting. The circular knife cutting device on high-speed equipment is a more durable alloy knife assembly. The alloy circular knife has high hardness, long disposable service life, and does not require a knife sharpening device. Therefore, it is extended to other types of cigarette making machines. At present, most companies have replaced their cutters with alloy knives. However, during the cutting process of the alloy knife, a small amount of glue will seep out when the filter rod cigarette end is squeezed, which will adhere to the surface of the alloy knife to form glue scale. After a period of accumulation, glue scale will also be generated in the knife seam of the cutting drum wheel, thereby affecting the cutting quality of the cigarette filter tip segment and causing faults such as burrs and defects on the cut end surface.
[0004] Therefore, how to provide a device that can automatically clean the glue scale on the cutting circular knife has become a technical problem that urgently needs to be solved in this field. Utility Model Content
[0005] The utility model aims to provide a scraper device for cleaning a circular cutting knife of a cigarette making machine, so as to realize automatic cleaning of rubber scale on the circular cutting knife.
[0006] According to one aspect of the utility model, a scraper device for cleaning a circular cutting knife of a cigarette making machine is provided, comprising a scraper support, a connecting shaft and a scraper;
[0007] The blade support is provided with a cross bar, and the cross bar is provided with two mutually symmetrical connecting bases, and the tops of the connecting bases are both provided with connecting holes, and the two connecting holes are coaxial;
[0008] The connecting shaft is arranged in the connecting hole and is located on the inner side of the two connecting bases, and openings are provided at the opposite ends of the two connecting shafts. The scraper is embedded in the opening, and locking bolts for fixing the scraper are provided on both sides of the connecting shaft located on the opening, and the two scrapers are respectively abutted against the two sides of the cutting circular knife.
[0009] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, a threaded column is provided at one end of the connecting shaft away from the scraper, and the threaded column passes through the connecting hole and is locked by a knurled nut.
[0010] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, a pin hole penetrating the axis is further provided on the circumferential surface of the connecting shaft close to the threaded column, a cylindrical pin is inserted in the pin hole, the length of the cylindrical pin is greater than the diameter of the connecting shaft, and the inner side wall of the connecting hole is provided with a limiting groove that cooperates with the cylindrical pin to limit the circumferential rotation of the connecting shaft.
[0011] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, a spring is further provided between the connecting shaft and the connecting base, and the spring is sleeved on the threaded column.
[0012] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, a compression hole for placing and compressing the spring is provided at one end of the connecting hole close to the connecting shaft, the compression hole is coaxial with the connecting hole, and the diameter of the compression hole is larger than the diameter of the connecting hole.
[0013] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, the limiting groove is located in the compression hole.
[0014] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, the opening is vertically arranged and passes through the axis of the connecting shaft.
[0015] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, the scraper support is in an L-shaped structure, a first adjustment hole is provided at the top of the vertical rod of the scraper support, the cross bar is connected in the first adjustment hole, and a first slot extending beyond the vertical rod is provided on one side of the first adjustment hole, and a first adjustment bolt passing through the first slot is also provided on the vertical rod to lock the cross bar to the vertical rod of the scraper support.
[0016] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, a second adjustment hole is provided on the top of the horizontal rod of the scraper support, and the second adjustment hole is used to fix the scraper support to the lower side of the circular cutting knife of the cigarette making machine; a second slot extending beyond the horizontal rod is provided on one side of the second adjustment hole, and a second adjustment bolt passing through the second slot is also provided on the horizontal rod to lock and fix the position of the scraper support.
[0017] Optionally, according to the scraper device for cleaning the circular cutting knife of a cigarette making machine described in the utility model, a third adjustment hole is also provided at the bottom of the two connecting bases, the third adjustment hole is sleeved on the cross bar, and one side of the third adjustment hole is provided with a third slot extending beyond the connecting base, and the connecting base is provided with a third adjustment bolt passing through the third slot to lock the connecting base on the cross bar.
[0018] When the scraper device disclosed in the utility model is in use, the two scrapers are respectively placed against the two sides of the cutting circular knife to scrape off the overlapping glue attached to the cutting circular knife, thereby preventing the overlapping glue from accumulating on the surface of the cutting circular knife and in the cutting slit of the cutting drum. By adjusting the height of the scraper support, the contact surface between the scraper and the circular blade is changed, so that the cleaning range can also be changed accordingly, so that the scraper can reach the best cleaning position.
[0019] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.
[0021] Figure 1 It is a structural schematic diagram of the scraper device disclosed in the utility model;
[0022] Figure 2 It is an exploded schematic diagram of the scraper device disclosed in the utility model.
[0023] Explanation of the reference numerals: 1-blade support; 2-cross bar; 3-connecting base; 4-connecting hole; 5-connecting shaft; 6-blade; 7-locking bolt; 8-threaded column; 9-cylindrical pin; 10-limiting groove; 11-spring; 12-compression hole; 13-knurled nut; 14-cutting circular knife; 15-first slot; 16-first adjusting bolt; 17-second adjusting hole; 18-second slot; 19-third adjusting hole; 20-third slot; 21-third adjusting bolt. DETAILED DESCRIPTION
[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.
[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0027] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0028] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0029] according to Figure 1 and Figure 2 As shown, the utility model provides a scraper device for cleaning a circular cutting knife of a cigarette making machine, comprising a scraper support 1, a connecting shaft 5 and a scraper 6.
[0030] A cross bar 2 is provided on the blade support 1, and two mutually symmetrical connecting bases 3 are provided on the cross bar 2. The tops of the connecting bases 3 are both provided with connecting holes 4, and the two connecting holes 4 are coaxial.
[0031] The connecting shaft 5 is arranged in the connecting hole 4 and is located on the inner side of the two connecting bases 3. The opposite ends of the two connecting shafts 5 are provided with openings, and the scraper 6 is embedded in the opening. The connecting shaft 5 is located on both sides of the opening and is provided with locking bolts 7 for fixing the scraper 6. The two scrapers 6 are respectively abutted against the two sides of the cutting circular knife 14.
[0032] When the scraper 6 device disclosed in the utility model is in use, the two scrapers 6 are respectively pressed against the two sides of the cutting circular knife 14 to scrape off the overlapping glue attached to the cutting circular knife 14 to prevent the overlapping glue from accumulating on the surface of the cutting circular knife 14 and the cutting slit of the cutting drum.
[0033] Furthermore, a threaded column 8 is provided at one end of the connecting shaft 5 away from the scraper blade 6, and the threaded column 8 passes through the connecting hole 4 and is locked by the knurled nut 13. In implementation, there is a clearance fit between the threaded column 8 and the connecting hole 4, and the axial movement of the connecting shaft 5 is only adjusted by the knurled nut 13.
[0034] Furthermore, a pin hole penetrating the axis is provided on the circumferential surface of the connecting shaft 5 near the threaded column 8, a cylindrical pin 9 is inserted into the pin hole, the length of the cylindrical pin 9 is greater than the diameter of the connecting shaft 5, and a limiting groove 10 cooperating with the cylindrical pin 9 is provided on the inner side wall of the connecting hole 4 to limit the circumferential rotation of the connecting shaft 5. Figure 2 As shown, when the threaded column 8 is passed through the connecting hole 4, the portion of the cylindrical pin 9 that exceeds the connecting column will be embedded in the limiting groove 10. No matter how the knurled nut 13 rotates, the connecting shaft 5 will not rotate synchronously with the knurled nut 13 under the limiting effect of the cylindrical pin 9.
[0035] Furthermore, a spring 11 is provided between the connecting shaft 5 and the connecting base 3, and the spring 11 is sleeved on the threaded column 8. A compression hole 12 for placing and compressing the spring 11 is provided at one end of the connecting hole 4 close to the connecting shaft 5. The compression hole 12 is coaxial with the connecting hole 4, and the diameter of the compression hole 12 is larger than the diameter of the connecting hole 4. During implementation, the limiting groove 10 is located in the compression hole 12, and the spring 11 is arranged in the compression hole 12 to prevent the spring 11 from affecting the cooperation between the cylindrical pin 9 and the limiting groove 10. The elastic force of the spring 11 is used to adjust the pressing force of the scraper 6 on the circular knife by rotating the nut. The counter-compression force of the spring 11 and the self-locking effect of the knurled nut 13 can ensure the stability between the connecting shaft 5 and the connecting base 3, and prevent the scraper 6 from shaking when the cutting circular knife 14 rotates.
[0036] Furthermore, the opening is vertically arranged and passes through the axis of the connecting shaft 5. When in use, it is necessary to ensure that the scraper 6 is vertically close to the two sides of the circular blade, so that the scraper 6 can correctly remove the accumulated glue attached to the two sides of the circular blade, thereby preventing the glue scale from accumulating on the blade surface and the drum wheel gap. The scraper 6 is a square sheet, and the scraper 6 has a pair of chamfered arcs at different angles and can be rotated 180° for use. The scraper 6 is provided with a glue removal cutting edge on two opposite sides, which can be fitted with the cutting circular knife 14. In addition, the scraper 6 needs to have a higher strength to ensure that it will not wear out quickly during the long-term friction with the circular blade, but the strength of the scraper 6 should not be too high, otherwise it will cause rapid wear of the circular blade. In the utility model, the scraper 6 is made of tungsten steel material with moderate strength.
[0037] Furthermore, the blade support 1 is an L-shaped structure, a first adjustment hole is provided at the top of the vertical rod of the blade support 1, the cross bar 2 is connected in the first adjustment hole, and a first slot 15 extending outside the vertical rod is provided on one side of the first adjustment hole, and a first adjustment bolt 16 penetrating the first slot 15 is also provided on the vertical rod to lock the cross bar 2 on the vertical rod of the blade support 1. During implementation, the cross bar 2 and the first adjustment hole are clearance-matched, and the position of the cross bar 2 can be adjusted according to actual conditions, and the opening degree of the first slot 15 can be adjusted by the first adjustment bolt 16, so as to lock the cross bar 2.
[0038] Furthermore, a second adjustment hole 17 is provided at the top of the horizontal rod of the scraper support 1, and the second adjustment hole 17 is used to fix the scraper support 1 to the lower side of the circular cutting knife 14 of the cigarette making machine; a second slot 18 extending beyond the horizontal rod is provided on one side of the second adjustment hole 17, and a second adjustment bolt penetrating the second slot 18 is also provided on the horizontal rod to lock and fix the position of the scraper support 1. By adjusting the height of the grinding wheel support, the contact surface between the scraper 6 and the circular blade is changed, so that the cleaning range can also change accordingly, so that the scraper 6 can reach the best cleaning position.
[0039] Furthermore, the bottom of the two connecting bases 3 is also provided with a third adjustment hole 19, the third adjustment hole 19 is sleeved on the cross bar 2, and one side of the third adjustment hole 19 is provided with a third slot 20 extending outside the connecting base 3, and the connecting base 3 is provided with a third adjustment bolt 21 penetrating the third slot 20 to lock the connecting base 3 on the cross bar 2. During implementation, the cross bar 2 and the third adjustment hole 19 are clearance-matched, and the position of the connecting base 3 on the cross bar 2 can be adjusted according to actual conditions, and the opening degree of the third slot 20 can be adjusted by the third adjustment bolt 21, so that the two connecting bases 3 are locked on the cross bar 2.
[0040] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A scraper device for cleaning a circular cutting knife of a cigarette making machine, characterized in that: It includes a blade support, a connecting shaft and a blade; The blade support is provided with a crossbar, and the crossbar is provided with two mutually symmetrical connecting bases, and the tops of the connecting bases are both provided with connecting holes, and the two connecting holes are coaxial; The connecting shaft is arranged in the connecting hole and is located on the inner side of the two connecting bases, and openings are provided at the opposite ends of the two connecting shafts. The scraper is embedded in the opening, and locking bolts for fixing the scraper are provided on both sides of the connecting shaft located on the opening, and the two scrapers are respectively abutted against the two sides of the cutting circular knife.
2. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 1, characterized in that: A threaded column is provided at one end of the connecting shaft away from the scraper. The threaded column passes through the connecting hole and is locked by a knurled nut.
3. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 2, characterized in that: The connecting shaft is also provided with a pin hole passing through the axis on the circumferential surface close to the threaded column, and a cylindrical pin is inserted into the pin hole. The length of the cylindrical pin is greater than the diameter of the connecting shaft, and the inner side wall of the connecting hole is provided with a limiting groove that cooperates with the cylindrical pin to limit the circumferential rotation of the connecting shaft.
4. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 3, characterized in that: A spring is also provided between the connecting shaft and the connecting base, and the spring is sleeved on the threaded column.
5. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 4, characterized in that: A compression hole for placing and compressing the spring is provided at one end of the connecting hole close to the connecting shaft. The compression hole is coaxial with the connecting hole, and the diameter of the compression hole is larger than the diameter of the connecting hole.
6. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 5, characterized in that: The limiting groove is located in the compression hole.
7. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 1, characterized in that: The opening is vertically arranged and passes through the axis of the connecting shaft.
8. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to any one of claims 1 to 7, characterized in that: The blade support has an L-shaped structure, and a first adjustment hole is provided at the top of the vertical rod of the blade support. The cross rod is connected to the first adjustment hole, and a first slot extending beyond the vertical rod is provided on one side of the first adjustment hole. The vertical rod is also provided with a first adjustment bolt passing through the first slot to lock the cross rod on the vertical rod of the blade support.
9. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 8, characterized in that: A second adjustment hole is provided at the top of the horizontal rod of the scraper support, and the second adjustment hole is used to fix the scraper support to the lower side of the circular cutting knife of the cigarette making machine; a second slot extending beyond the horizontal rod is provided on one side of the second adjustment hole, and a second adjustment bolt passing through the second slot is also provided on the horizontal rod to lock and fix the position of the scraper support.
10. The scraper device for cleaning the circular cutting knife of a cigarette making machine according to claim 9, characterized in that: A third adjustment hole is also provided at the bottom of the two connecting bases, and the third adjustment hole is sleeved on the cross bar, and one side of the third adjustment hole is provided with a third slot extending beyond the connecting base, and the connecting base is provided with a third adjustment bolt passing through the third slot to lock the connecting base on the cross bar.