Gap adjustment auxiliary device and filter tip assembling machine

By designing a positioning bracket and a gauge block gap adjustment auxiliary device, the problem of unstable positioning in the gauge bar measurement method was solved, and the precise calibration of the scraper and drum groove was achieved, improving equipment efficiency and product quality consistency.

CN224125261UActive Publication Date: 2026-04-17CHINA TOBACCO GUANGDONG IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO GUANGDONG IND
Filing Date
2025-05-08
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the measuring bar method lacks a fixing device when adjusting the scraper gap, which leads to unstable positioning, prolongs the adjustment time, and affects equipment efficiency and product quality. In particular, it is difficult to ensure the consistency of multi-station adjustment under high-speed continuous production conditions.

Method used

A gap adjustment auxiliary device was designed, including a positioning bracket and a gauge block. The gauge block is detachably mounted on the drum. The double mating surfaces of the gauge block cooperate with the drum and the scraper to achieve precise calibration of the parallelism between the scraper and the drum groove, reducing the dependence on the operator's experience.

Benefits of technology

It significantly improves the parallelism between the scraper and the drum groove, reduces cigarette forming defects, and improves adjustment efficiency and equipment operation stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of tobacco processing, and discloses a gap adjusting auxiliary device and a filter tip assembling machine, the gap adjusting auxiliary device comprises a positioning support and a gauge block, the positioning support is detachably installed on a drum wheel, the gauge block is detachably installed on the positioning support, and the gauge block is located in a gap defined between the drum wheel and a washboard; the gauge block is provided with a first binding face matched with the outer surface of the drum wheel and a second binding face matched with the scraping strip. According to the invention, the positioning support detachably mounted on the end face of the drum wheel and the detachably connected gauge block are arranged, the first binding surface of the gauge block is matched with the outer surface of the drum wheel, and the second binding surface is matched with the scraping strip, so that the problem of unstable positioning caused by manual operation in a traditional measuring rod measurement method is solved; the design of the double binding surfaces of the gauge block realizes the accurate calibration of the gap between the drum wheel and the scraping strip, and the parallelism of the scraping strip and the drum wheel groove is obviously improved.
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Description

Technical Field

[0001] This application relates to the field of tobacco processing, and in particular to a gap adjustment auxiliary device and a filter tip assembly machine. Background Technology

[0002] In the tobacco machinery manufacturing industry, the installation accuracy of the scraper blade in a filter tip filling machine is a key factor determining the quality of cigarette splicing. Currently, the industry commonly uses a measuring rod method to adjust the scraper blade gap. This involves placing a cylindrical measuring rod between the flue groove of the splicing drum and the top of the scraper blade, and then visually comparing the gap for calibration. However, due to the lack of a fixing device for the measuring rod itself, there are significant drawbacks in actual adjustment: operators must maintain the position of the measuring rod manually, making it highly susceptible to displacement due to its own weight or external interference. This instability not only prolongs the adjustment time but also causes deviations in the parallelism between the scraper blade and the drum groove, leading to cigarette forming defects and equipment malfunctions. Especially under high-speed continuous production conditions, the traditional method relies heavily on operator experience, making it difficult to ensure consistency in adjustments across multiple workstations, severely restricting the improvement of equipment efficiency and product quality stability. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a gap adjustment auxiliary device and a filter nozzle assembly machine.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] This application provides:

[0006] A gap adjustment auxiliary device, comprising:

[0007] A positioning bracket, which is detachably mounted on the drum;

[0008] A gauge block, which is detachably mounted on the positioning bracket, is located in the gap defined between the drum and the scraper, and has a first contact surface adapted to the outer surface of the drum and a second contact surface adapted to the scraper.

[0009] Furthermore, the positioning bracket includes a fixing plate and a connecting block. The positioning bracket is detachably and fixedly mounted on the drum, and the connecting block is detachably connected to the gauge block.

[0010] Furthermore, the fixing plate has mounting holes, and the drum end face has multiple fixing holes evenly distributed. The fixing plate is connected to the drum by fasteners passing through the mounting holes into the fixing holes.

[0011] Furthermore, the mounting hole is an oblong hole.

[0012] Furthermore, the connecting block has a connecting hole extending through it in the direction toward the fixing plate, and the circumferential surface of the connecting block has at least one positioning hole in the axial direction, the positioning hole communicating with the connecting hole.

[0013] Furthermore, the connecting block is set at a 90-degree angle to the fixing plate, and the shape formed by the fixing plate and the connecting block is "L".

[0014] Furthermore, the gauge block includes a connecting portion and a measuring portion, the connecting portion extending into the first mating surface, and the measuring portion having a first mating surface and a second mating surface.

[0015] Furthermore, the measuring part includes a first block, and a second block is provided at both ends of the first block, and the connecting part is fixedly connected to one of the second blocks.

[0016] Furthermore, the measuring section is in the shape of an "I".

[0017] This application also provides a filter tip assembly machine, which includes:

[0018] A drum wheel, wherein the end face of the drum wheel is detachably equipped with any of the above-mentioned gap adjustment auxiliary devices;

[0019] A washboard, the washboard being located on one side of the circumferential surface of the drum, the washboard having a mounting position;

[0020] A scraper strip is fixedly installed at the mounting position of the washboard.

[0021] This application solves the problem of unstable positioning caused by manual operation in the traditional measuring rod method by setting a positioning bracket that can be detachably installed on the end face of the drum and a detachably connected gauge block. The first contact surface of the gauge block is adapted to the outer surface of the drum, and the second contact surface is matched with the scraper. The double contact surface design of the gauge block enables precise calibration of the gap between the drum and the scraper, significantly improving the parallelism between the scraper and the drum groove, thereby reducing cigarette forming defects. The modular detachable connection method supports quick replacement of gauge blocks of different specifications, adapts to the adjustment needs of multiple working conditions, reduces the dependence on operator experience, and improves adjustment efficiency and equipment operation stability.

[0022] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This diagram shows the structural schematic of the adjustment auxiliary device and the drum wheel in the assembled state.

[0025] Figure 2 This paper shows a schematic diagram of the structure of the adjustment auxiliary device, cope wheel, washboard and scraper in the exploded state of this application;

[0026] Figure 3 This paper shows a schematic diagram of the assembly state of the adjustment auxiliary device of this application;

[0027] Figure 4 A schematic diagram of the positioning bracket structure of this application is shown;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of the gauge block of this application is shown;

[0029] Figure 6 A side view of the gauge block structure of this application is shown.

[0030] Explanation of key component symbols:

[0031] 110-Positioning bracket; 111-Fixing plate; 1111-Mounting hole; 112-Connecting block; 1121-Connecting hole; 1122-Positioning hole; 120-Gauge block; 121-Connecting part; 122-Measuring part; 1221-First mating surface; 1222-Second mating surface; 1201-First block; 1202-Second block; 200-Drum wheel; 201-Fixing hole; 300-Rubbing board; 400-Scraper strip. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] This application provides a gap adjustment auxiliary device, which includes a positioning bracket 110 and a gauge block 120. The positioning bracket 110 is detachably mounted on the drum 200, and the gauge block 120 is detachably mounted on the positioning bracket 110. The gauge block 120 is located in the gap defined between the drum 200 and the scrubbing plate 300. The gauge block 120 has a first contact surface 1221 adapted to the outer surface of the drum 200 and a second contact surface 1222 adapted to the scraper 400.

[0038] See Figure 1 , Figure 2 as well as Figure 3 As shown, in order to ensure that the gap between the scraper 400 installed on the washboard 300 and the drum 200 reaches a predetermined size, thereby meeting the requirements for assembling the cigarette filter and cigarette, specifically, firstly, the gauge block 120 is fixedly installed on the positioning bracket 110, so that the gauge block 120 is located in the gap between the drum 200 and the washboard 300. Then, the positioning bracket 110 is fixedly installed on the end face of the drum 200, thereby fixing the positions of the positioning bracket 110 and the gauge block 120 relative to the drum 200. It should be noted that during the installation of the positioning bracket 110, the first contact surface 1221 of the gauge block 120 needs to be in contact with the outer peripheral surface of the drum 200. Next, by gradually adjusting the position of the scraper 400 until the scraper 400 reaches the second contact surface 1222 of the gauge block 120, the position adjustment of the scraper 400 is completed. At this time, the gap between the scraper 400 and the peripheral surface of the drum 200 reaches a predetermined size. Understandably, in order to meet the gap size between the scraper 400 and the drum 200, before installing the gauge block 120 and the positioning bracket 110, it is necessary to select a gauge block 120 with an appropriate thickness according to the gap size, so that the scraper 400 can be adjusted to the predetermined position.

[0039] In one embodiment, it should be noted that, in order to accommodate cigarettes of different sizes, the positioning bracket 110 and the gauge block 120 are detachably installed, thereby facilitating the replacement of gauge blocks 120 of different thicknesses.

[0040] The positioning bracket 110 includes a fixing plate 111 and a connecting block 112. The positioning bracket 110 is detachably and fixedly installed on the drum 200, and the connecting block 112 is detachably connected to the gauge block 120.

[0041] The connecting block 112 is set at a 90-degree angle to the fixing plate 111, and the shape formed by the fixing plate 111 and the connecting block 112 is "L".

[0042] Please continue reading. Figure 1 , Figure 2 As shown, in order to position the gauge block 120 between the drum 200 and the washboard 300 while keeping it fixed, the fixing plate 111 and the connecting block 112 need to be distributed at a 90-degree angle, that is, the shape formed by the fixing plate 111 and the connecting block 112 is L-shaped. The fixing plate 111 is fixedly installed on the end face of the drum 200. Then, the connecting block 112 is located on one side of the gap formed between the drum 200 and the washboard 300. When the gauge block 120 is installed on the connecting block 112, the gauge block 120 will extend into the gap between the drum 200 and the washboard 300, thus completing the fixation of the gauge block 120.

[0043] Understandably, the positioning bracket 110 forming the "L" shape can provide support for the gauge block 120 in both the lateral and longitudinal directions, allowing the gauge block 120 to extend into the gap between the drum 200 and the washboard 300 and maintain its fixed position.

[0044] The fixing plate 111 has mounting holes 1111, and the end face of the drum 200 has a plurality of fixing holes 201 evenly distributed. The fixing plate 111 is connected to the drum 200 by fasteners passing through the mounting holes 1111 and into the fixing holes 201.

[0045] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, in order to achieve a fixed connection between the fixing plate 111 and the end face of the drum 200, it is necessary to open the mounting hole 1111 on the fixing plate 111 and the fixing hole 201 on the end face of the drum 200. Then, fasteners are inserted through the mounting hole 1111 and into the fixing hole 201 to achieve a fixed connection between the fixing plate 111 and the end face of the drum 200.

[0046] Please continue reading. Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, in this embodiment, in order to improve the installation tightness of the fixing plate 111, two mounting holes 1111 are opened through the fixing plate 111 so that the fixing plate 111 is firmly fixed to the end face of the drum 200.

[0047] It is understood that, in order to accommodate the number of mounting holes 1111, at least one fixing hole 201 is provided on the end face of the drum 200, which is matched in number and position to the mounting holes 1111. In this embodiment, four fixing holes 201 are provided on the end face of the drum 200, and the four fixing holes 201 are arranged in a cross shape. In other embodiments, the number of fixing holes 201 can be two, six, eight, etc., that is, the number of fixing holes 201 is even. The fixing holes 201 are evenly spaced about the axis of the drum 200. In practice, the number of fixing holes 201 can be designed according to needs, and is not limited here.

[0048] For example, the fasteners mentioned above can be bolts, screws, or other fastening components. Accordingly, the fixing hole 201 should be a threaded hole. Furthermore, a spring washer can be provided between the fastener and the positioning bracket 110 to prevent the fastener from loosening to a certain extent.

[0049] Please continue reading. Figure 3 and Figure 4As shown, the mounting hole 1111 is an oblong hole; it can be understood that the oblong mounting hole 1111 can adjust the position of the connecting block 112 and the gauge block 120 mounted on the connecting block 112 in the longitudinal direction, so that the second mating surface 1222 can be mated with the circumferential surface of the drum 200.

[0050] The connecting block 112 has a connecting hole 1121 extending through it in the direction toward the fixing plate 111, and the circumferential surface of the connecting block 112 has at least one positioning hole 1122 in the axial direction, and the positioning hole 1122 communicates with the connecting hole 1121.

[0051] See Figure 3 and Figure 4 As shown, in order to achieve a detachable and fixed connection between the gauge block 120 and the positioning bracket 110, a connecting hole 1121 is made through the connecting block 112, and the gauge block 120 extends into the first mating surface 1221. In order to prevent the gauge block 120 from detaching from the connecting hole 1121, a positioning hole 1122 is made on the circumferential surface of the connecting block 112. Then, the gauge block 120 can be fixed by fasteners installed into the positioning hole 1122 and pressing against the connecting hole 1121. At this time, the positions of the gauge block 120 and the connecting block 112 are fixed, thus achieving a detachable and fixed connection between the gauge block 120 and the connecting block 112.

[0052] When it is necessary to disassemble the gauge block 120, simply remove the fastener from the positioning hole 1122 to release the gauge block 120 from its tight position, and then the gauge block 120 can be removed from the connection hole 1121.

[0053] For example, the fastener can be a bolt, screw or other screw-on component, and the corresponding positioning hole 1122 should be a threaded hole that passes through and communicates with the connecting hole 1121.

[0054] For example, the number of positioning holes 1122 can be one, two, three, etc., and can be designed according to needs in practice without limitation. In this embodiment, the number of positioning holes 1122 is two, and the two positioning holes 1122 are located on the same straight line.

[0055] The gauge block 120 includes a connecting part 121 and a measuring part 122. The connecting part 121 extends into the first mating surface 1221, and the measuring part 122 has a first mating surface 1221 and a second mating surface 1222.

[0056] See Figure 3 , Figure 5 as well as Figure 6As shown, in this embodiment, the gauge block 120 mainly includes two parts, a connecting portion 121 and a measuring portion 122. Among them, the connecting portion 121 is used to connect with the connecting block 112 to achieve fixed position. Then, the measuring portion 122 is located in the gap between the drum 200 and the washboard 300 for adjusting and positioning the wiper strip 400. It can be understood that the measuring portion 122 has two upper and lower surfaces, one surface is the first fitting surface 1221, and the other surface is the second fitting surface 1222. Specifically, the first fitting surface 1221 faces the drum 200, and the first fitting surface 1221 contacts the outer peripheral surface of the drum 200. The second fitting surface 1222 faces the washboard 300, and the second fitting surface 1222 waits to contact the top of the wiper strip 400 to complete the adjustment process.

[0057] Specifically, in this embodiment, the first fitting surface 1221 is an arc surface. Further, the second fitting surface 1222 is also an arc surface.

[0058] The measuring portion 122 includes a first block 1201, and second blocks 1202 are provided at both ends of the first block 1201. The connecting portion 121 is fixedly connected to one of the second blocks 1202; the measuring portion 122 is in an "I" shape.

[0059] Please continue to refer to Figure 5 and Figure 6 As shown, the measuring portion 122 is mainly in an "I" shape. Specifically, the measuring portion 122 mainly includes a first block 1201 and second blocks 1202 located at both ends of the first block 1201. It can be understood that the width of the second block 1202 is greater than that of the first block 1201, thus forming an "I" shape.

[0060] The embodiment of the present application further provides a filter rod making machine. The filter rod making machine includes a drum 200, a washboard 300, and a wiper strip 400. Among them, when the position of the wiper strip 400 needs to be adjusted, that is, when adjusting the gap between the wiper strip 400 and the circumferential surface of the drum 200, the above-mentioned gap adjustment auxiliary device is detachably installed on the end surface of the drum 200. Specifically, the positioning bracket 110 of the auxiliary device is fixedly installed on the end surface of the drum 200, and the gauge block 120 is installed on the positioning bracket 110 and extends into the gap between the drum 200 and the wiper strip 400. The washboard 300 is located on one side of the circumferential surface of the drum 200. The washboard 300 has an installation position, and the wiper strip 400 is fixedly installed on the installation position of the washboard 300.

[0061] In this embodiment, in order to enable the position adjustment of the scraper 400 at the mounting position of the washboard 300, a corresponding threaded hole is made at the mounting position of the washboard 300, and an adjustment hole is made on the scraper 400. The adjustment hole can be an oblong hole, and a screw can be passed through the adjustment hole and connected to it. When adjustment is required, the scraper 400 can be released from its pressing and fixing state by turning the screw in the reverse direction. Similarly, after the position of the scraper 400 is adjusted, the scraper 400 can be fixedly installed at the mounting position of the washboard 300 by turning the screw in the forward direction.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A gap adjustment auxiliary device, characterized in that, include: A positioning bracket (110) is detachably mounted on the drum (200); A gauge block (120) is detachably mounted on the positioning bracket (110). The gauge block (120) is located in the gap defined between the drum (200) and the scrubbing plate (300). The gauge block (120) has a first contact surface (1221) adapted to the outer surface of the drum (200) and a second contact surface (1222) adapted to the scraper (400).

2. The lash adjustment assist device of claim 1, wherein, The positioning bracket (110) includes a fixing plate (111) and a connecting block (112). The positioning bracket (110) is detachably and fixedly installed on the drum (200). The connecting block (112) is detachably connected to the gauge block (120).

3. The lash adjustment assist device of claim 2, wherein, The fixing plate (111) has a mounting hole (1111), and the drum (200) has a plurality of fixing holes (201) evenly distributed on its end face. The fixing plate (111) is connected to the drum (200) by fasteners passing through the mounting hole (1111) into the fixing hole (201).

4. The lash adjustment assist device of claim 3, wherein, The mounting hole (1111) is an oblong hole.

5. The lash adjustment assist device of claim 2, wherein, The connecting block (112) has a connecting hole (1121) extending through it towards the fixing plate (111). The circumferential surface of the connecting block (112) has at least one positioning hole (1122) in the axial direction, and the positioning hole (1122) communicates with the connecting hole (1121).

6. The lash adjustment assist device of claim 5, wherein, The connecting block (112) is set at a 90-degree angle to the fixing plate (111), and the shape formed by the fixing plate (111) and the connecting block (112) is "L".

7. The lash adjustment assist device of claim 1, wherein, The gauge block (120) includes a connecting part (121) and a measuring part (122). The connecting part (121) extends into the first mating surface (1221), and the measuring part (122) has a first mating surface (1221) and a second mating surface (1222).

8. The lash adjustment assist device of claim 7, wherein, The measuring part (122) includes a first block (1201), and a second block (1202) is provided at both ends of the first block (1201). The connecting part (121) is fixedly connected to one of the second blocks (1202).

9. A lash adjuster assist device according to claim 7 or 8, characterized in that, The measuring part (122) is in the shape of an "I".

10. A filter tipping machine characterized in that, include: A drum (200) having a gap adjustment auxiliary device as described in any one of claims 1 to 9 detachably mounted on its end face; A washboard (300) is located on one side of the circumferential surface of the drum (200), and the washboard (300) has a mounting position; Scraper (400), which is fixedly installed on the mounting position of the washboard (300).