A horn nozzle support calibration tool for different specifications of cigarettes and a method of using the same

Abstract

The application discloses a kind of different specification cigarette horn nozzle support calibration tool, it includes tool support and the calibration matrix placed on it, calibration sleeve and calibration gauge, tool support has the effect of bearing calibration matrix, calibration sleeve and calibration gauge, tool support includes base and the vertical stand plate of setting on its upper end surface, the side surface of stand plate is provided with several holes with different hole diameters with internal thread blind hole, the side surface lower part of stand plate is provided with threaded column with external thread using blind hole, calibration matrix is placed using threaded column, the upper end surface of stand plate is provided with several holes with different hole diameters deep hole, calibration gauge is placed using deep hole.The application has the characteristics such as structure design reasonable, easy to operate, calibration adjustment horn nozzle support position efficiency is high and short time is used.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cigarette equipment, and particularly relates to a horn nozzle support calibration tool for different specifications of cigarettes and a use method thereof. BACKGROUND

[0002] The cigarette cutting system of the YJ17 cigarette rolling forming machine is an extremely important device in the cigarette equipment. The horn nozzle mechanism, an important component in the cigarette cutting system, provides necessary support for the cigarette rod cutting and cuts the continuous cigarette rod into double-length cigarettes of equal length.

[0003] In order to ensure the normal operation of the horn nozzle mechanism, the horn nozzle mechanism needs to be regularly maintained and overhauled, and the vibration piece needs to be checked for fracture and the crank connecting rod assembly needs to be checked for wear. When the vibration piece is fractured or the crank connecting rod assembly is worn, the horn nozzle support needs to be disassembled to replace the corresponding damaged components. After the replacement is completed, the horn nozzle support is connected with the crank connecting rod assembly again. At this time, the height and horizontal position of the horn nozzle support need to be readjusted so that the axis of the inner hole of the horn nozzle coincides with the axis of the cigarette rod, thereby ensuring that the continuous cigarette rod can smoothly pass through the inner hole of the horn nozzle and be cut by the blades on the rotary cutter disc into double-length cigarettes meeting the process requirements. If the height and horizontal position of the horn nozzle support are not adjusted, the cigarette rod will be difficult to smoothly enter the inner hole of the horn nozzle, which not only needs to be repeatedly stopped and cut, but also causes waste of raw and auxiliary materials and increases the workload of the operator. If the height and horizontal position of the horn nozzle support are not properly adjusted, the cigarette rod that smoothly enters the inner hole of the horn nozzle is prone to quality defects such as uneven end cut of the cigarette and skewed cigarette, which also causes waste of raw and auxiliary materials. Therefore, only when the height and horizontal position of the horn nozzle support are adjusted to the best position, the continuous cigarette rod can smoothly pass through the inner hole of the horn nozzle and be cut into double-length cigarettes meeting the requirements.

[0004] The existing method for calibrating the position of the horn nozzle support is to place a cigarette diameter measuring rod at the double-length cigarette position of the cigarette guide rail to calibrate and adjust the coaxiality and levelness of the horn nozzle support. However, the inner hole of the horn nozzle is an oval hole, which does not match the cigarette diameter measuring rod. In order to make the horn nozzle have a better supporting effect on the cigarette rod during cutting, repeated assembly, measurement and adjustment are needed, which is difficult, inaccurate and time-consuming and laborious. SUMMARY

[0005] In view of this, the present application provides a horn nozzle support calibration tool for different specifications of cigarettes, which can solve the technical problems that the existing technology and the inner hole of the horn nozzle do not match, making it difficult to calibrate and adjust the position of the horn nozzle support, and the precision is poor, and it is time-consuming and laborious.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A horn nozzle support calibration tool for different specifications of cigarettes, comprising a tool support and a calibration matrix, a calibration sleeve and a calibration gauge rod placed thereon,

[0008] The tool support has the function of bearing the calibration matrix, the calibration sleeve and the calibration gauge rod, and comprises a base and a vertical stand plate arranged on the upper end face of the base. A plurality of blind holes with different hole diameters and internal threads are formed in the side face of the stand plate. The calibration sleeve is placed in the blind hole. A threaded column with external threads is arranged on the lower part of the side face of the stand plate, and the calibration matrix is placed in the threaded column. A plurality of deep holes with different hole diameters are formed in the upper end face of the stand plate, and the calibration gauge rod is placed in the deep hole.

[0009] The calibration matrix is a cylindrical structure, and an inner hole is arranged through the axial direction of the cylindrical structure. One end of the inner hole is provided with an internal thread section matched with the external threads of the threaded column. An axial through positioning groove is formed in the outer side face of the calibration matrix. An opening groove is also formed in the outer side face of the calibration matrix, which is arranged opposite to the positioning groove.

[0010] The inner part of the calibration sleeve is provided with a calibration hole. One end of the calibration sleeve is provided with an external thread section matched with the internal threads of the blind hole and the internal thread section of the calibration matrix, respectively. The other end of the calibration sleeve is provided with a cylindrical section matched with the inner hole of the calibration matrix. Through the thread cooperation between the internal thread section of the calibration matrix and the external thread section of the calibration unit, the selected calibration sleeve with corresponding specification size can be screwed into the inner part of the calibration matrix. The calibration sleeve comprises a plurality of calibration units.

[0011] The calibration gauge rod is matched with the calibration hole of the calibration sleeve, and can penetrate the calibration hole of the calibration sleeve and move in the calibration hole. The calibration gauge rod comprises a plurality of gauge rod units with different cross-sectional diameters.

[0012] Further, the stand plate is welded to the upper surface of the base, and is located at one third of the upper surface of the base.

[0013] Further, the number of the blind holes is four, which are arranged on the side of the vertical plate in the form of gradually increasing in diameter from top to bottom, and the side of each blind hole is marked with a value corresponding to the size of the calibration sleeve placed in the corresponding blind hole.

[0014] Further, the threaded column is located below the blind hole, which extends a distance in the horizontal direction at the side of the vertical plate.

[0015] Further, the deep hole is opened along the vertical direction of the vertical plate, and the number of the deep hole is four, which are arranged on the left and right ends of the upper end surface of the vertical plate as the middle line of the arrangement direction of the blind hole.

[0016] Further, the outer diameter size of the calibration matrix is set according to the maximum outer diameter of the horn nozzle and the hole diameter of the matching hole of the horn nozzle support, and the calibration matrix can be matched with the matching hole of the horn nozzle support.

[0017] Further, the internal thread section extends a distance from the left end of the internal hole of the calibration matrix to the right end, and the right end of the internal thread section is provided with a positioning guide groove, and the surface of the positioning guide groove is smooth.

[0018] Further, the axial middle line of the positioning groove is parallel to the central axis of the calibration matrix, the width of the positioning groove is 3mm, and the distance from the bottom surface of the positioning groove to the central axis of the calibration matrix is 7.5mm.

[0019] Further, the opening groove is located at the center of the outer side of the calibration matrix, the bottom surface of the opening groove is a plane, and the radial middle line of the bottom surface of the opening groove is perpendicular to the axial middle line of the positioning groove.

[0020] Further, the length of the calibration sleeve is equal to the length of the calibration matrix, and the outer diameter of the cylindrical section of the calibration sleeve is equal to the internal hole diameter of the calibration matrix.

[0021] Further, the calibration sleeve includes several calibration units with different specifications, and the calibration holes of the calibration units with different specifications are different in hole diameter, and the hole diameter of the calibration hole of the calibration unit is set according to the corresponding circumference specification of the cigarette.

[0022] Further, the calibration unit is provided with four specifications, and the hole diameters of the calibration holes of the calibration units with four specifications are 7.8mm, 7.0mm, 6.4mm and 5.4mm in turn.

[0023] Further, the outer side of the end of the cylindrical segment of the calibration sleeve away from the outer threaded segment is provided with a 0.5*3mm chamfer, which facilitates the guiding of the outer threaded segment of the calibration sleeve when screwed into the calibration matrix, and an inner hexagonal groove is arranged in the calibration hole of the end of the cylindrical segment of the calibration sleeve away from the outer threaded segment, for the inner hexagonal wrench to screw the calibration sleeve into or out of the interior of the calibration matrix.

[0024] Further, the cross-sectional diameter of the gauge rod unit is set according to the corresponding cigarette circumference specification size, and the gauge rod unit is provided with four specification sizes, and the cross-sectional diameter sizes of the four specification sizes of the gauge rod unit are 7.8mm, 7.0mm, 6.4mm and 5.4mm in turn.

[0025] Further, the edge of the calibration hole of the end of the outer threaded segment of the calibration sleeve away from the cylindrical segment cannot be chamfered, and the front and rear ends of the calibration gauge rod used in cooperation with the calibration sleeve cannot be chamfered, which aims to clearly observe from the end face of the calibration gauge rod flush with the calibration sleeve whether the calibration gauge rod is offset in the calibration hole, preventing errors when the calibration gauge rod is used in cooperation with the calibration sleeve, resulting in insufficient accuracy of the horn nozzle support position adjustment, and ultimately affecting the cigarette cutting quality.

[0026] A method for using a horn nozzle support calibration tool for different specification cigarettes, the specific steps comprising:

[0027] Step S1: first, the disassembled horn nozzle support is reconnected with the crank connecting rod assembly, second, the calibration matrix is unscrewed from the threaded column of the tool support, then the calibration sleeve corresponding to the circumference specification of the tobacco rod cut by the YJ17 cigarette making machine where the horn nozzle support is located is selected, the calibration sleeve is unscrewed from the blind hole matched with its specification on the tool support, then the cylindrical segment of the calibration sleeve is screwed into the inner hole of the calibration matrix from the inner threaded segment of the calibration matrix, until the outer threaded segment of the calibration sleeve is in contact with and threadedly cooperates with the inner threaded segment of the calibration matrix, then the inner hexagonal groove arranged in the calibration hole of the end of the cylindrical segment of the calibration sleeve away from the outer threaded segment is used to lock the calibration sleeve in the interior of the calibration matrix to form a calibration assembly, so as to achieve the purpose of assembling and using the calibration matrix and the calibration sleeve, finally, the calibration gauge rod with the same size specification as the calibration hole of the calibration sleeve is selected, and the calibration and adjustment of the height and horizontal position of the horn nozzle support is started;

[0028] Step S2: Remove the flared mouth from the mating hole of the flared mouth support in Step S1. Place the workpiece assembled from the calibration components in Step 1, namely the calibration mother and calibration sleeve, into the mating hole of the flared mouth support. At this time, the internal thread section of the calibration mother and the external thread section of the calibration sleeve are facing the direction when the cigarette stick enters the flared mouth. The positioning groove on the outer side of the calibration mother is aligned with the cylindrical pin in the flared mouth support. The opening groove on the outer side of the calibration mother is facing the rotating cutter head of the YJ17 rolling forming machine. It can avoid the blade clamp on the rotating cutter head and prevent the calibration mother from colliding with the blade clamp and damaging the blade clamp. Then, fasten the workpiece assembled from the calibration components, namely the calibration mother and calibration sleeve, into the mating hole of the flared mouth support.

[0029] Step S3: Place the calibration gauge selected in Step S1 into the U-shaped groove guide rail that the cigarette bar needs to pass through when entering the nozzle. Rotate the crank to move the nozzle support of the workpiece, which is equipped with the calibration component (i.e., the calibration body and calibration sleeve), to the midpoint of its stroke. Move the calibration gauge in the U-shaped groove guide rail so that the end face of the calibration gauge gradually approaches the end face of the calibration component, that is, gradually approaches the annular plane formed by the end face of the external thread section of the calibration sleeve and the end face of the internal thread section of the calibration body. At this time, the end face of the calibration gauge contacts the end face of the calibration component. Check the axial positional relationship between the end face of the calibration gauge and the calibration hole of the calibration sleeve. If the calibration hole of the calibration sleeve deviates to the left or right relative to the end face of the calibration gauge, the nozzle needs to be adjusted. Adjust the position of the nozzle support to the right or left. Loosen the fastening screws at the connection between the nozzle support and the connecting rod. Add or remove adjusting shims at this connection to make the end face of the calibration rod coaxial with the calibration hole of the calibration sleeve. If the calibration hole of the calibration sleeve deviates upward or downward relative to the end face of the calibration rod, the position of the nozzle support needs to be adjusted downward or upward. Loosen the fastening screws at the connection between the nozzle support and the connecting rod, and move the height of the nozzle support relative to the connecting rod to make the end face of the calibration rod coaxial with the calibration hole of the calibration sleeve. When the calibration rod can pass smoothly through the calibration hole of the calibration sleeve, the calibration adjustment of the nozzle support is complete. Remove the calibration assembly and reinstall the nozzle onto the nozzle support.

[0030] Compared with the prior art, the technical solution of this invention has the following beneficial effects:

[0031] 1. This invention features a reasonable structural design, convenient operation, high efficiency in calibrating and adjusting the position of the nozzle support, and short processing time. In this invention, the calibration component formed by locking the calibration sleeve inside the calibration body replaces the nozzle in the nozzle mechanism. Through the cooperation of the calibration measuring rod adapted to the calibration sleeve, the position of the nozzle support can be quickly and accurately calibrated and adjusted. It can also accurately calibrate the coaxiality and horizontality relationship between the cigarette stick and the nozzle according to different specifications and sizes of cigarettes, ensuring that the cigarette stick can smoothly enter the nozzle and be neatly cut off by the blade after being supported by the nozzle.

[0032] 2. This invention, through the combined use of calibration sleeves of various specifications and sizes and calibration gauges that match the specifications of the calibration sleeves, enables precise calibration of the nozzle support position for cigarettes of different thicknesses using measuring tools corresponding to their specifications. This achieves the goal of adapting a single calibration fixture to the nozzle support position calibration and adjustment of various cigarette specifications, improving the installation and adjustment quality and accuracy requirements of the nozzle support, refining and standardizing the operating procedures, and enhancing the consistency and standardization of maintenance work.

[0033] 3. This invention uses a tooling bracket to neatly arrange and place the calibration body, calibration sleeve, and calibration gauge on the tooling bracket, facilitating centralized management and maintenance. This invention also uses chamfers on the edge of the calibration hole at the end furthest from the cylindrical section of the external thread of the calibration sleeve and on the front and rear end faces of the calibration gauge that mates with the calibration sleeve. When the end face of the calibration gauge without chamfers contacts the un-chamfered annular plane, the degree of axial displacement of the calibration hole of the calibration sleeve relative to the calibration gauge can be clearly observed. Based on this axial displacement, the position of the nozzle support can be adjusted more accurately, avoiding misjudgment of the axial displacement due to the presence of chamfers, which could lead to insufficient adjustment accuracy of the nozzle support position and ultimately affect the cutting quality of the cigarette cutter.

[0034] Other beneficial effects of this invention will be further explained in the following specific embodiments. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Figure 1 This is a schematic diagram of the horn nozzle mechanism assembly of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 3 This is an exploded view of the overall structure of the present invention;

[0039] Figure 4This is a schematic diagram A of the calibration master component structure of the present invention;

[0040] Figure 5 Schematic diagram B of the calibration mother component structure of the present invention

[0041] Figure 6 This is an internal sectional view of the calibration mother part of the present invention;

[0042] Figure 7 This is a schematic diagram A of the calibration sleeve structure of the present invention;

[0043] Figure 8 This is a schematic diagram B of the calibration sleeve structure of the present invention;

[0044] Figure 9 This is a schematic diagram of the calibration bar structure of the present invention;

[0045] Figure 10 This is a flowchart illustrating the assembly process of the calibration component of the present invention.

[0046] The components are as follows: 101. Trumpet mouth support; 102. Vibrating plate; 103. Crank; 104. Connecting rod; 105. Fastening screw; 106. Adjusting shim; 107. Trumpet mouth; 201. Base; 202. Vertical plate; 203. Blind hole; 204. Threaded post; 205. Deep hole; 3. Calibration body; 301. Inner hole; 302. Internal thread section; 303. Positioning guide groove; 304. Positioning groove; 305. Opening groove; 4. Calibration sleeve; 401. Calibration hole; 402. External thread section; 403. Cylindrical section; 404. Internal hexagonal groove; 5. Calibration gauge bar. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] like Figure 1 The diagram shown is a schematic representation of the assembly of the bell mouth mechanism of the YJ17 rolling forming machine used in this invention.

[0049] The bell mouth mechanism includes a crank-connecting rod assembly, a vibrating plate, a bell mouth support, and a bell mouth. The crank-connecting rod serves as the driving component of the bell mouth mechanism, enabling it to reciprocate forward and backward. The crank-connecting rod assembly includes a crank and a connecting rod connected to it. The end of the connecting rod furthest from the crank, i.e., the left end of the connecting rod, is fastened to the vibrating plate. The vibrating plate enables the crank-connecting rod assembly to return quickly after passing the end of its forward and backward strokes. The left end of the connecting rod is also movably connected to the bell mouth support via a fastening screw and an adjusting shim. The bell mouth is fastened to the inside of the bell mouth support via a cylindrical pin. The bell mouth includes a left bell mouth and a right bell mouth. The left and right bell mouths are respectively placed in the mating holes of the bell mouth support. There is a gap between the left and right bell mouths, allowing the blades on the rotating cutter head of the YJ17 rolling forming machine to pass through this gap and cut the continuous tobacco strip passing through the inner hole of the bell mouth into double-length cigarettes.

[0050] To ensure the proper functioning of the bell mouth mechanism, regular maintenance and inspection are necessary. This includes checking for broken vibrating discs and wear on the crank-connecting rod assembly. If the vibrating disc is broken or the crank-connecting rod assembly is worn, the bell mouth support must be removed and the damaged parts replaced. After replacement, the bell mouth support should be reconnected to the crank-connecting rod assembly. At this point, the height and horizontal position of the bell mouth support need to be readjusted so that the axis of the bell mouth's inner hole coincides with the axis of the tobacco stick. This ensures that continuous tobacco sticks can pass smoothly through the bell mouth's inner hole and be cut into double-length rolls by the blades on the rotating cutter head, meeting the process requirements. If the height and horizontal position of the nozzle support are not adjusted, the cigarette sticks will have difficulty entering the inner hole of the nozzle smoothly. This not only requires repeated machine stops to re-cut the cigarettes, but also wastes raw and auxiliary materials and increases the workload of operators. If the height and horizontal position of the nozzle support is not adjusted properly, the cigarette sticks that enter the inner hole of the nozzle smoothly are prone to quality defects such as uneven cuts on the cigarette end face and crooked cigarettes, which also wastes raw and auxiliary materials. Therefore, only by adjusting the height and horizontal position of the nozzle support to the optimal position can we ensure that the continuous cigarette sticks pass smoothly through the inner hole of the nozzle and are cut into double-length cigarettes that meet the requirements.

[0051] To address this, the present invention provides a calibration fixture for the nozzle support of cigarettes of different specifications. This fixture can quickly, conveniently, and efficiently adjust the position of the nozzle support to meet the aforementioned requirements, ensuring the normal operation of the nozzle mechanism and obtaining cigarettes of double the required length. Furthermore, given the differences in the circumference of cigarettes, to further improve the accuracy of adjusting the nozzle support position and enhance the alignment between the nozzle's inner hole axis and the cigarette strip axis, the present invention can also use measuring tools corresponding to the specifications of cigarettes of different thicknesses to precisely calibrate the nozzle support position. This achieves the goal of adapting one calibration fixture to the nozzle support position calibration and adjustment of multiple cigarette specifications.

[0052] The details are as follows:

[0053] like Figures 2 to 10 As shown, a calibration fixture for the mouthpiece support of cigarettes of different specifications is provided.

[0054] It includes a tooling bracket and a calibration housing, calibration sleeve, and calibration gauge placed on it.

[0055] The fixture support has the function of supporting the calibration body, calibration sleeve and calibration gauge. The fixture support includes a base and a vertical plate set on its upper end face. The side of the vertical plate has a number of blind holes with internal threads of different diameters, which are used to place the calibration sleeve. The lower side of the vertical plate has a threaded post with external threads, which is used to place the calibration body. The upper end face of the vertical plate has a number of deep holes with different diameters, which are used to place the calibration gauge.

[0056] In the embodiments described in this invention, the upright plate is welded to the upper surface of the base and is located at one-third of the upper surface of the base. When the calibration body, calibration sleeve and calibration gauge are placed on the upright plate, this arrangement can be used to stabilize the center of gravity of the entire calibration fixture and prevent it from tipping over.

[0057] Preferably, the height of the upright plate can be set to 135mm and its width can be set to 70mm; the thickness of the base can be set to 10mm and its width can be set to 40mm.

[0058] In the embodiments described in this invention, four blind holes are provided, arranged on the side of the upright plate in a manner where the hole diameter gradually increases from top to bottom. Each blind hole is marked with a value corresponding to the size of the calibration sleeve placed in the corresponding blind hole, which are 5.4mm, 6.4mm, 7.0mm, and 7.8mm from top to bottom. The internal thread of the blind hole can be M14×1.5mm, or a non-standard thread M14×1mm, or a pipe thread. When placing the calibration sleeve with the corresponding specification and size in the blind hole, the central axis of the calibration sleeve is aligned with the central axis of the blind hole, so that the internal thread of the blind hole contacts the external thread section of the calibration sleeve, thereby allowing the external thread section of the calibration sleeve to be screwed into the blind hole. This achieves the purpose of neatly arranging the calibration sleeve and placing it on the tooling bracket, which is convenient for centralized management and maintenance.

[0059] Preferably, the depth of the blind hole can be 8 mm;

[0060] In the embodiments of the present invention, the threaded post is located below the blind hole and extends horizontally for a certain distance on the side of the vertical plate. When placing the calibration body on the threaded post, the central axis of the calibration body is aligned with the central axis of the threaded post, so that the internal thread section of the calibration body contacts and engages with the external thread of the threaded post, thereby fastening the calibration body to the threaded post. This achieves the purpose of neatly arranging the calibration body and placing it on the tooling bracket, which facilitates centralized management and maintenance.

[0061] Preferably, the distance by which the threaded post extends horizontally can be 8 mm;

[0062] In the embodiments described in this invention, the deep holes are opened along the vertical direction of the upright plate, and four deep holes are opened. With the arrangement direction of the blind holes as the center line, two are set at each of the left and right ends of the upper surface of the upright plate. When placing the calibration gauge in the deep hole, the central axis of the calibration gauge is aligned with the central axis of the deep hole, so that the calibration gauge gradually penetrates into the interior of the deep hole until the bottom end face of the calibration gauge is completely in contact with the bottom end face of the deep hole. This achieves the purpose of neatly arranging the calibration gauge and placing it on the tooling bracket, which is convenient for centralized management and maintenance.

[0063] Preferably, the depth of the deep hole can be 100mm, and the diameter of the deep hole can be 5.5mm, 6.5mm, 7.1mm, and 7.9mm respectively. It can be used to hold calibration gauges with cross-sectional diameters of 5.4mm, 6.4mm, 7.0mm, and 7.8mm. The purpose of setting the diameter of the deep hole to be larger than the cross-sectional diameter of the calibration gauge is to facilitate handling.

[0064] The calibration matrix is ​​a cylindrical structure with an inner hole running through it along the axial direction. One end of the inner hole is configured as an internal thread section that matches the external thread of the threaded column. The outer surface of the calibration matrix is ​​provided with an axially penetrating positioning groove, and the outer surface of the calibration matrix is ​​also provided with an opening groove that is opposite to the positioning groove.

[0065] In the embodiments described in this invention, the outer diameter of the calibration body is set according to the maximum outer diameter of the flared mouth and the diameter of the mating hole of the flared mouth support. The calibration body can be adapted to the mating hole of the flared mouth support. When calibrating and adjusting the position of the flared mouth support, the calibration body needs to be placed in the mating hole of the flared mouth support and tightened to proceed to the next calibration process.

[0066] Preferably, the length of the calibration matrix can be 45mm, and the outer diameter of the calibration matrix is ​​[missing information]. The inner diameter of the calibration matrix is ​​11 mm.

[0067] In the embodiments of the present invention, the internal thread segment extends a distance from the left end to the right end of the inner hole of the calibration body. The right end of the internal thread segment is provided with a positioning guide groove. The surface of the positioning guide groove is a smooth surface. The positioning guide groove can limit the position of the calibration sleeve screwing into the calibration body so that the end face of the calibration sleeve can be flush with the end face of the calibration body.

[0068] Preferably, the extension length of the internal thread section is 6mm, and the internal thread of the internal thread section can be M14×1.5mm, or a non-standard thread M14×1mm, or a pipe thread, and the length of the positioning guide groove is 2mm.

[0069] In the embodiments described in this invention, the axial centerline of the positioning groove is parallel to the central axis of the calibration body, the width of the positioning groove is 3mm, and the distance from the bottom surface of the positioning groove to the central axis of the calibration body is 7.5mm. When calibrating and adjusting the position of the horn mouth support, the calibration body is placed in the mating hole of the horn mouth support, and the positioning groove is aligned with the cylindrical pin inside the horn mouth support to achieve the purpose of positioning the calibration body in the horn mouth support.

[0070] In the embodiments described in this invention, the opening slot is located at the center of the outer side of the calibration body. The bottom surface of the opening slot is a plane, and the radial centerline of the bottom surface of the opening slot is perpendicular to the axial centerline of the positioning groove. The purpose of setting the opening slot is that when the calibration body is fastened to the horn mouth support and the position of the horn mouth support is calibrated and adjusted, the opening slot on the calibration body can avoid the blade clamp on the rotating cutter head, preventing the calibration body from colliding with the blade clamp and damaging the blade clamp.

[0071] Preferably, the opening width of the opening groove is 14mm, and the opening depth of the opening groove, i.e. the depth from the bottom surface of the opening groove to the outer circular surface of the calibration matrix, is 4mm.

[0072] The calibration sleeve has a calibration hole through it. One end of the calibration sleeve is configured as an external thread section that can be adapted to the internal thread of the blind hole and the internal thread section of the calibration body respectively. The other end of the calibration sleeve is configured as a cylindrical section that is adapted to the inner hole of the calibration body. Through the threaded engagement between the internal thread section of the calibration body and the external thread section of the calibration unit, the selected calibration sleeve of the corresponding specification and size can be screwed into the interior of the calibration body. The calibration sleeve includes several calibration units.

[0073] In the embodiments described in this invention, the length of the calibration sleeve is equal to the length of the calibration body, and the outer diameter of the cylindrical section of the calibration sleeve is equal to the inner diameter of the calibration body. When the calibration sleeve is screwed into the calibration body, the outer surface of the cylindrical section of the calibration sleeve can just contact the inner surface of the calibration body. The calibration sleeve will not shake inside the calibration body, thus meeting the requirements of tightness and accuracy between calibration components. The calibration sleeve is locked inside the calibration body to form a calibration component. The calibration component is fastened in the mating hole of the nozzle support, thereby achieving the purpose of replacing the nozzle in the nozzle mechanism with the calibration component. Through the use of the calibration measuring rod adapted to the calibration sleeve, the position of the nozzle support can be quickly and accurately calibrated and adjusted. It can also accurately calibrate the coaxiality and horizontality relationship between the cigarette stick and the nozzle according to different specifications and sizes of cigarettes, ensuring that the cigarette stick can smoothly enter the nozzle and be cleanly cut off by the blade after being supported by the nozzle.

[0074] Preferably, the length of the calibration sleeve is 45mm, the length of the external thread section of the calibration sleeve is 7.8mm, the external thread of the external thread section can be M14×1.5mm, or a non-standard thread M14×1mm, or a pipe thread, and the length of the cylindrical section of the calibration sleeve is 37.2mm, and the outer diameter of the cylindrical section is 11mm.

[0075] In the embodiments described in this invention, the calibration sleeve includes several calibration units of different sizes. The difference between the calibration units of different sizes is that the aperture of the calibration holes opened on the calibration units is different. The aperture of the calibration holes of the calibration units is set according to the corresponding cigarette circumference size.

[0076] Specifically, the calibration unit is provided with four sizes, and the aperture sizes of the calibration holes of the four sizes are 7.8mm, 7.0mm, 6.4mm and 5.4mm respectively. The corresponding cigarette sizes are regular cigarettes (circumference 24.5mm), medium cigarettes (circumference 20mm), medium cigarettes (circumference 22mm) and slim cigarettes (circumference 17mm). Since the circumference of the cigarettes is different, the radius of the U-shaped groove guide rail before the cigarette bar enters the nozzle in the YJ17 rolling machine is also different. In order to ensure that the cigarettes passing through the U-shaped groove guide rail of the corresponding radius can accurately enter the nozzle and avoid the production of cigarettes with unqualified cuts, it is necessary to set up corresponding nozzle support position calibration units and calibration gauges used in conjunction with the calibration units according to the different cigarette sizes. This achieves the purpose of accurately calibrating the position of the nozzle support that provides cutting support for cigarettes of different sizes to the optimal position.

[0077] In the embodiments of the present invention, the outer surface of the cylindrical section of the calibration sleeve away from the external thread section is provided with a chamfer of 0.5×3mm. This arrangement facilitates the guiding effect when the external thread section of the calibration sleeve is screwed into the calibration body. The calibration hole at the end of the cylindrical section of the calibration sleeve away from the external thread section is provided with an internal hexagonal groove, which is used by an internal hexagonal wrench to screw the calibration sleeve into or out of the calibration body.

[0078] Preferably, the width of the internal hexagonal slot is 8mm and the depth is 4mm;

[0079] The calibration gauge is adapted to the calibration hole of the calibration sleeve, and can pass through the calibration hole of the calibration sleeve and move within the calibration hole. The calibration gauge includes several gauge units with different cross-sectional diameters.

[0080] In the embodiments of the present invention, the cross-sectional diameter of the measuring rod unit is set according to the corresponding cigarette circumference specifications. The measuring rod unit is provided with four specifications, and the cross-sectional diameters of the four specifications are 7.8mm, 7.0mm, 6.4mm and 5.4mm respectively. The corresponding cigarette specifications are regular cigarettes (circumference specification 24.5mm), medium cigarettes (circumference specification 20mm), medium cigarettes (circumference specification 22mm) and slim cigarettes (circumference specification 17mm). The measuring rod unit can be used in conjunction with the calibration unit corresponding to its specifications. The aperture sizes of the calibration holes of the calibration units corresponding to its specifications are 7.8mm, 7.0mm, 6.4mm and 5.4mm respectively.

[0081] Preferably, the length of each measuring bar unit is 20mm, the material is Gcr15 (bearing steel), the surface roughness is <0.20um, and the heat treatment hardness reaches HRC58-63.

[0082] In the embodiments described in this invention, the end faces of the measuring bar units are marked with markings corresponding to their specifications and dimensions, so as to facilitate the differentiation of specifications and dimensions when selecting them.

[0083] In the embodiments described in this invention, the edge of the calibration hole at the end of the external thread section of the calibration sleeve away from the cylindrical section is not chamfered. When the calibration sleeve is screwed into the calibration body, the end face of the external thread section of the calibration sleeve can form a flat annular plane with the end face of the internal thread section of the calibration body. The end faces of the front and rear ends of the calibration measuring rod used in conjunction with the calibration sleeve are not chamfered. When the end face of the calibration measuring rod without chamfer is in contact with the annular plane without chamfer, the degree of axial position offset of the calibration hole of the calibration sleeve relative to the calibration measuring rod can be clearly observed. Based on the degree of axial position offset, the position of the nozzle support can be adjusted more accurately, avoiding the situation where the degree of axial position offset is misjudged due to the presence of chamfer, resulting in insufficient accuracy of the nozzle support position adjustment, which ultimately affects the cutting quality of the cigarette cutter.

[0084] Four locomotives (53#, 54#, 55#, and 56#) were selected for calibration and adjustment tests using this invention. The adjustment time data for the horn-mouth support position of each locomotive, collected from the workshop, was compared with the adjustment time for the horn-mouth support position before using this invention. The results are shown in Table 1 below:

[0085]

[0086] As shown in Table 1, after applying this invention, the time for adjusting the position of the horn nozzle support was reduced from an average of 52.5 minutes to 5.5 minutes, saving an average of 47 minutes. This represents an 89.5% improvement in adjustment time compared to before using this invention. This invention allows for simple and quick calibration and adjustment of the horn nozzle support position, keeping the time under 10 minutes, thus shortening the adjustment time and improving production efficiency.

[0087] After the invention was applied, the number of times traceability was required due to cut quality issues decreased from 30 times to 3 times, and the number of non-conforming products traceable decreased from 627,000 pieces to 29,000 pieces (see Table 2).

[0088]

[0089] The present invention also provides a method of use, which can be applied to the above-mentioned calibration fixture for the mouthpiece support of cigarettes of different specifications. The specific steps are as follows:

[0090] Step S1: First, reconnect the removed nozzle support to the crank connecting rod assembly. Second, unscrew the calibration body from the threaded post of the tooling bracket. Next, select a calibration sleeve that corresponds to the circumference of the cigarette strip cut by the YJ17 rolling and forming machine where the nozzle support is located, and unscrew the calibration sleeve from the blind hole on the tooling bracket that matches its specifications. Then, screw the cylindrical section of the calibration sleeve into the inner hole of the calibration body from the inner thread section of the calibration body until the outer thread section of the calibration sleeve contacts and is threadedly engaged with the inner thread section of the calibration body. Then, use an Allen wrench to lock the calibration sleeve inside the calibration body through the Allen groove in the calibration hole at the end of the cylindrical section of the calibration sleeve away from the outer thread section to form a calibration assembly, so as to achieve the purpose of assembling and using the calibration body and the calibration sleeve. Finally, select a calibration gauge bar of the same size as the calibration hole of the calibration sleeve and start calibrating and adjusting the height and horizontal position of the nozzle support.

[0091] Step S2: Remove the flared mouth from the mating hole of the flared mouth support in Step S1. Place the workpiece assembled from the calibration components in Step 1, namely the calibration mother and calibration sleeve, into the mating hole of the flared mouth support. At this time, the internal thread section of the calibration mother and the external thread section of the calibration sleeve are facing the direction when the cigarette stick enters the flared mouth. The positioning groove on the outer side of the calibration mother is aligned with the cylindrical pin in the flared mouth support. The opening groove on the outer side of the calibration mother is facing the rotating cutter head of the YJ17 rolling forming machine. It can avoid the blade clamp on the rotating cutter head and prevent the calibration mother from colliding with the blade clamp and damaging the blade clamp. Then, fasten the workpiece assembled from the calibration components, namely the calibration mother and calibration sleeve, into the mating hole of the flared mouth support.

[0092] Step S3: Place the calibration gauge selected in Step S1 into the U-shaped groove guide rail that the cigarette bar needs to pass through when entering the nozzle. Rotate the crank to move the nozzle support of the workpiece, which is equipped with the calibration component (i.e., the calibration body and calibration sleeve), to the midpoint of its stroke. Move the calibration gauge in the U-shaped groove guide rail so that the end face of the calibration gauge gradually approaches the end face of the calibration component, that is, gradually approaches the annular plane formed by the end face of the external thread section of the calibration sleeve and the end face of the internal thread section of the calibration body. At this time, the end face of the calibration gauge contacts the end face of the calibration component. Check the axial positional relationship between the end face of the calibration gauge and the calibration hole of the calibration sleeve. If the calibration hole of the calibration sleeve deviates to the left or right relative to the end face of the calibration gauge, the nozzle needs to be adjusted. Adjust the position of the nozzle support to the right or left. Loosen the fastening screws at the connection between the nozzle support and the connecting rod. Add or remove adjusting shims at this connection to make the end face of the calibration rod coaxial with the calibration hole of the calibration sleeve. If the calibration hole of the calibration sleeve deviates upward or downward relative to the end face of the calibration rod, the position of the nozzle support needs to be adjusted downward or upward. Loosen the fastening screws at the connection between the nozzle support and the connecting rod, and move the height of the nozzle support relative to the connecting rod to make the end face of the calibration rod coaxial with the calibration hole of the calibration sleeve. When the calibration rod can pass smoothly through the calibration hole of the calibration sleeve, the calibration adjustment of the nozzle support is complete. Remove the calibration assembly and reinstall the nozzle onto the nozzle support.

[0093] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A calibration fixture for the mouthpiece support of cigarettes of different specifications, characterized in that: It includes a tooling bracket and a calibration housing, calibration sleeve, and calibration gauge placed on it. The fixture support serves to support the calibration matrix, calibration sleeve, and calibration gauge. The fixture support includes a base and a vertical plate disposed on its upper surface. The vertical plate is welded to the upper surface of the base and is located at one-third of the upper surface of the base. The side of the vertical plate has several blind holes with internal threads of different diameters, which are arranged in a manner that gradually increases in diameter from top to bottom. Each blind hole is marked with a value corresponding to the size of the calibration sleeve placed in the corresponding blind hole. The calibration sleeve is placed using the blind holes. The lower side of the vertical plate has a threaded post with external threads, which extends horizontally for a certain distance on the side of the vertical plate. The calibration matrix is ​​placed using the threaded post. The upper surface of the vertical plate has several deep holes with different diameters, which are opened along the vertical direction of the vertical plate. The calibration gauge is placed using the deep holes. The calibration body is a cylindrical structure with an inner hole running through it along the axial direction. One end of the inner hole is configured as an internal thread segment that matches the external thread of the threaded column. A positioning guide groove is provided at the right end of the internal thread segment. The surface of the positioning guide groove is a smooth surface. An axially penetrating positioning groove is provided on the outer side of the calibration body. An opening groove is also provided on the outer side of the calibration body, which is located at the center of the outer side of the calibration body. The bottom surface of the opening groove is a plane. The radial centerline of the bottom surface of the opening groove is perpendicular to the axial centerline of the positioning groove. The outer diameter of the calibration body is set according to the maximum outer diameter of the flared nozzle and the diameter of the mating hole of the flared nozzle support. The calibration body can be adapted to the mating hole of the flared nozzle support. The calibration sleeve has a through-hole. One end of the calibration sleeve is configured as an external thread section that can be adapted to the internal thread of the blind hole and the internal thread section of the calibration body, respectively. The other end of the calibration sleeve is configured as a cylindrical section that adapts to the inner hole of the calibration body. The calibration hole at the end of the cylindrical section of the calibration sleeve away from the external thread section is provided with an internal hexagonal groove. The length of the calibration sleeve is equal to the length of the calibration body. The calibration sleeve includes several calibration units of different specifications and sizes. The difference between the calibration units of different specifications and sizes is that the diameter of the calibration holes opened on the calibration units is different. The diameter of the calibration holes of the calibration units is set according to the corresponding cigarette circumference specifications and sizes. The outer diameter of the cylindrical section of the calibration sleeve is equal to the inner hole diameter of the calibration body. Through the threaded engagement between the internal thread section of the calibration body and the external thread section of the calibration unit, the selected calibration sleeve of the corresponding specifications and sizes can be screwed into the interior of the calibration body. The calibration gauge is adapted to the calibration hole of the calibration sleeve, and can pass through the calibration hole of the calibration sleeve and move within the calibration hole. The calibration gauge includes several gauge units with different cross-sectional diameters.

2. The calibration fixture for the nozzle support of cigarettes of different specifications according to claim 1, characterized in that: The number of blind holes is set to four, the threaded post is located below the blind holes, and the number of deep holes is set to four, with the arrangement direction of the blind holes as the center line, two are set at each of the left and right ends of the upper surface of the vertical plate.

3. The calibration fixture for the mouthpiece support of cigarettes of different specifications according to claim 1, characterized in that: The internal thread section extends a distance from the left end to the right end of the inner hole of the calibration body. The axial centerline of the positioning groove is parallel to the central axis of the calibration body. The width of the positioning groove is 3mm, and the distance from the bottom surface of the positioning groove to the central axis of the calibration body is 7.5mm.

4. The calibration fixture for the mouthpiece support of cigarettes of different specifications according to claim 1, characterized in that: The calibration unit is available in four sizes, with the calibration hole diameters of 7.8mm, 7.0mm, 6.4mm, and 5.4mm respectively.

5. The calibration fixture for the mouthpiece support of cigarettes of different specifications according to claim 1, characterized in that: The cross-sectional diameter of the measuring rod unit is set according to the corresponding cigarette circumference specification. The measuring rod unit is provided in four specifications, and the cross-sectional diameter of the four specifications of the measuring rod unit is 7.8mm, 7.0mm, 6.4mm and 5.4mm respectively.

6. The calibration fixture for the mouthpiece support of cigarettes of different specifications according to claim 1, characterized in that: The height of the upright plate is set to 135mm, and its width is set to 70mm; the thickness of the base is set to 10mm, and its width is set to 40mm; the depth of the blind hole is 8mm; the horizontal extension distance of the threaded post is 8mm; the depth of the deep hole is 100mm; the length of the calibration body is 45mm, the outer diameter of the calibration body is 19mm, and the inner diameter of the calibration body is 11mm; the opening width of the slot is 14mm, and the opening depth of the slot (i.e., the depth from the bottom surface of the slot to the outer circular surface of the calibration body) is 4mm; the length of the calibration sleeve is 45mm, the length of the external thread section of the calibration sleeve is 7.8mm, the length of the cylindrical section of the calibration sleeve is 37.2mm, and the outer diameter of the cylindrical section is 11mm; the width of the internal hexagonal slot is 8mm, and the depth is 4mm; the length of each measuring bar unit is 20mm.

7. A method for using a calibration fixture for the mouthpiece support of cigarettes of different specifications, wherein the method is applied to the calibration fixture for the mouthpiece support of cigarettes of different specifications as described in any one of claims 1 to 6, characterized in that: The specific steps include: Step S1: First, reconnect the removed nozzle support to the crank connecting rod assembly. Second, unscrew the calibration body from the threaded post of the tooling bracket. Next, select a calibration sleeve that corresponds to the circumference of the cigarette strip cut by the YJ17 rolling and forming machine where the nozzle support is located, and unscrew the calibration sleeve from the blind hole on the tooling bracket that matches its specifications. Then, screw the cylindrical section of the calibration sleeve into the inner hole of the calibration body from the inner thread section of the calibration body until the outer thread section of the calibration sleeve contacts and is threadedly engaged with the inner thread section of the calibration body. Then, use an Allen wrench to lock the calibration sleeve inside the calibration body through the Allen groove in the calibration hole at the end of the cylindrical section of the calibration sleeve away from the outer thread section to form a calibration assembly, so as to achieve the purpose of assembling and using the calibration body and the calibration sleeve. Finally, select a calibration gauge bar of the same size as the calibration hole of the calibration sleeve and start calibrating and adjusting the height and horizontal position of the nozzle support. Step S2: Remove the flared mouth from the mating hole of the flared mouth support in Step S1. Place the workpiece assembled from the calibration components in Step 1, namely the calibration mother and calibration sleeve, into the mating hole of the flared mouth support. At this time, the internal thread section of the calibration mother and the external thread section of the calibration sleeve are facing the direction when the cigarette stick enters the flared mouth. The positioning groove on the outer side of the calibration mother is aligned with the cylindrical pin in the flared mouth support. The opening groove on the outer side of the calibration mother is facing the rotating cutter head of the YJ17 rolling forming machine. It can avoid the blade clamp on the rotating cutter head and prevent the calibration mother from colliding with the blade clamp and damaging the blade clamp. Then, fasten the workpiece assembled from the calibration components, namely the calibration mother and calibration sleeve, into the mating hole of the flared mouth support. Step S3: Place the calibration gauge selected in Step S1 into the U-shaped groove guide rail that the cigarette bar needs to pass through when entering the nozzle. Rotate the crank to move the nozzle support of the workpiece, which is equipped with the calibration component (i.e., the calibration body and calibration sleeve), to the midpoint of its stroke. Move the calibration gauge in the U-shaped groove guide rail so that the end face of the calibration gauge gradually approaches the end face of the calibration component, that is, gradually approaches the annular plane formed by the end face of the external thread section of the calibration sleeve and the end face of the internal thread section of the calibration body. At this time, the end face of the calibration gauge contacts the end face of the calibration component. Check the axial positional relationship between the end face of the calibration gauge and the calibration hole of the calibration sleeve. If the calibration hole of the calibration sleeve deviates to the left or right relative to the end face of the calibration gauge, the nozzle needs to be adjusted. Adjust the position of the nozzle support to the right or left. Loosen the fastening screws at the connection between the nozzle support and the connecting rod. Add or remove adjusting shims at this connection to make the end face of the calibration rod coaxial with the calibration hole of the calibration sleeve. If the calibration hole of the calibration sleeve deviates upward or downward relative to the end face of the calibration rod, the position of the nozzle support needs to be adjusted downward or upward. Loosen the fastening screws at the connection between the nozzle support and the connecting rod, and move the height of the nozzle support relative to the connecting rod to make the end face of the calibration rod coaxial with the calibration hole of the calibration sleeve. When the calibration rod can pass smoothly through the calibration hole of the calibration sleeve, the calibration adjustment of the nozzle support is complete. Remove the calibration assembly and reinstall the nozzle onto the nozzle support.

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