Cigarette twisting and connecting system measuring device and measuring method thereof

Abstract

The invention relates to a cigarette twisting and connecting system measuring device and a measuring method thereof, which are used for detecting geometric tolerance between a drum wheel and a twisting plate assembly, and the cigarette twisting and connecting system measuring device comprises a measuring rod, a spring, a fixing assembly and an indicating assembly. Wherein the measuring rod comprises a rod main body and a measuring head which are connected with each other, the width of the measuring head is larger than that of the rod main body, and the measuring head is used for being clamped between the drum wheel and the washboard assembly; one end of the spring is connected with the rod body; the fixing assembly is arranged at one end of the rod body, the other end of the spring is connected with the fixing assembly, and the measuring rod can move relative to the fixing assembly to drive the spring to stretch. A plurality of scales are arranged on the fixing assembly at intervals along the length direction of the measuring rod; the indicating assembly is connected with the spring, and when the spring stretches out and draws back, the spring drives the indicating assembly to move relative to the fixing assembly, so that the indicating assembly corresponds to different scale positions. The geometric tolerance detection accuracy can be improved, and whether an unqualified condition exists in the detection process or not can be visually judged.

Description

Technical Field

[0001] This application relates to the technical field of cigarette machine components, and in particular to a measuring device and method for a cigarette rolling system. Background Technology

[0002] With the development of cigarette manufacturing technology, cigarette making machine technology has emerged. Cigarette making machines are usually equipped with a tobacco-rubbing drum and a rubbing plate assembly. The main structure of the rubbing plate assembly is the rubbing plate. The tobacco is formed into a cylindrical cigarette stick. The cigarette stick and the tipping paper are placed one-to-one between the rubbing plate assembly and the drum. The cigarette stick can roll between the rubbing plate and the tobacco-rubbing drum. During the rolling process, the cigarette stick is wrapped and shaped by the tipping paper.

[0003] In related technologies, the circumferential surface of the cigarette-rolling drum is provided with arc-shaped grooves at equal intervals, and the cigarette assembly is placed in the arc-shaped grooves for transportation. One side of the rubbing plate faces the cigarette-rolling drum, and the curvature of the side of the rubbing plate facing the cigarette-rolling drum is the same as that of the outer wall of the cigarette-rolling drum. The distance between the rubbing plate and the cigarette-rolling drum can be adjusted by an adjusting screw in the rubbing plate assembly, allowing the rubbing plate to move closer to or further away from the cigarette-rolling drum. Adjusting the rubbing plate to a suitable distance ensures that the friction force experienced by the tipping paper and the cigarette assembly is moderate when rolling between the drum and the rubbing plate, and ensures that the tipping paper splicing quality meets production quality requirements after the cigarette is formed. In the above method, the parallelism between the side of the rubbing plate facing the drum and the outer wall of the drum, and the cylindricity between the inner wall of the arc-shaped groove and the side of the rubbing plate facing the drum, have a significant impact on cigarette production; that is, the two curved surfaces should be as flat as possible. Therefore, before using the rubbing board and the cigarette-making drum to produce cigarettes, a standard measuring rod is usually clamped between the rubbing board and the cigarette-making drum. The standard measuring rod is pulled out along the axis of the drum, and the unevenness between the side of the rubbing board facing the drum and the outer wall of the drum is judged by the feel of pulling it.

[0004] However, existing standard gauge rods typically employ a relatively long measuring rod. When placed between the drum and the washboard, the measuring rod extends from one side of the drum to the other, meaning it is in complete contact with the surface to be measured. When pulling the standard gauge rod for measurement, if there are uneven surfaces, only the presence of unevenness can be detected; the exact location of the unevenness cannot be determined. Furthermore, if multiple uneven areas exist, only the area with the largest protrusion on the surface can be detected, resulting in low measurement accuracy. Additionally, this method relies heavily on the user's feel when pulling the standard gauge rod, which is highly subjective and leads to poor measurement precision. Summary of the Invention

[0005] Therefore, it is necessary to provide a measuring device and method for a cigarette kneading system with higher detection accuracy to address the problem of poor accuracy in detecting the geometric tolerance between the drum and the kneading board.

[0006] A measuring device for a cigarette-making system, used to detect the geometric tolerances between the drum and the rubbing plate assembly, comprising:

[0007] A measuring rod includes a rod body and a measuring head connected to each other. The width of the measuring head in a predetermined direction is greater than the width of the rod body in the predetermined direction. The predetermined direction is perpendicular to the length direction of the rod body. The measuring head is used to clamp between the drum and the washboard assembly.

[0008] A spring, one end of which is connected to the rod body;

[0009] A fixing component is located at the end of the rod body away from the measuring head, and the other end of the spring is connected to the fixing component. The measuring rod can move relative to the fixing component to drive the spring to extend and retract. The fixing component has multiple graduations spaced apart along the length of the measuring rod.

[0010] An indicator component is connected to the spring. When the spring extends or retracts, the spring causes the indicator component to move relative to the fixed component, so that the indicator component corresponds to different scale positions among the multiple scales.

[0011] In some embodiments, the indicating component includes a pointer fixedly connected to one of the spring coils of the spring, so that the pointer corresponds to different scale positions of the fixed component as the spring extends or retracts.

[0012] In some embodiments, the indicating component further includes a pin and a connector, the connector being sleeved on the outer periphery of the spring and fixedly connected to the spring via the pin; the pointer is connected to the connector and moves synchronously with the connector.

[0013] In some embodiments, the fixing assembly includes a sleeve and a gripper. The sleeve is fitted around the outer periphery of the spring, and the end of the spring is connected to the sleeve. A strip-shaped through hole is formed on the surface of the sleeve, the length direction of which is along the length direction of the spring. The pointer is inserted into the strip-shaped through hole and moves along the length direction of the strip-shaped through hole under the action of the spring. A plurality of scales are provided on the surface of the sleeve and correspond to different positions along the length direction of the strip-shaped through hole. The end of the sleeve away from the measuring rod is connected to the gripper.

[0014] In some embodiments, the fixing component further includes a pin, one end of which is connected to the gripper, and the other end of the pin abuts against the pointer when the pointer is located at the end of the strip-shaped through hole away from the measuring rod.

[0015] In some embodiments, the grip includes a handle, one end of which is threaded to the sleeve, and the surface of the handle is knurled.

[0016] In some embodiments, there are multiple measuring heads, which have various shapes and can be interchangeably connected to the rod body.

[0017] A measurement method applicable to the measuring device of the cigarette splicing system described above includes the following steps:

[0018] Step S1: Heat the washboard assembly to the operating temperature;

[0019] Step S2: Adjust the position of the washboard assembly and the drum so that the distance between the surface to be measured of the washboard assembly and the surface to be measured of the drum is greater than the diameter of the measuring head;

[0020] Step S3: Place the measuring rod of the cigarette rolling system measuring device between the measuring surface of the rolling plate assembly and the measuring surface of the drum, with the length direction of the measuring rod along the axial direction of the drum; control the rolling plate assembly to move closer to the drum; when both the measuring surface of the rolling plate assembly and the measuring surface of the drum are in contact with the measuring head, stop the rolling plate assembly from moving.

[0021] Step S4: Pull the cigarette splicing system measuring device along the axial direction of the drum to move the measuring head from one side of the drum to the opposite side of the drum;

[0022] Step S5: Move the measuring device of the cigarette rolling system out from between the rolling plate assembly and the drum, control the drum to rotate at a preset angle, and return to execute step S2.

[0023] In some embodiments, prior to step S3, a step of installing the cigarette splicing system measuring device is included, wherein the step of installing the cigarette splicing system measuring device includes:

[0024] A measuring rod with a cylindrical measuring head is selected.

[0025] The measuring head is coaxially arranged with the rod body, and the measuring rod, the spring, the indicating component and the fixing component are connected in sequence.

[0026] In some embodiments, prior to step S3, a step of installing the cigarette splicing system measuring device is included, wherein the step of installing the cigarette splicing system measuring device includes:

[0027] The measuring rod selected is a plate-shaped measuring head;

[0028] The end of the measuring head is connected to the rod body, and at least one set of opposite sides of the measuring head are arc surfaces. The measuring rod, the spring, the indicating component and the fixing component are connected in sequence.

[0029] The aforementioned cigarette rolling system measuring device and method comprises a measuring rod consisting of a rod body and a measuring head. The width of the measuring head is greater than the width of the rod body. This means that when the measuring rod is positioned between the drum and the rolling plate assembly, only the measuring head contacts the surfaces of the drum and the rolling plate assembly to be measured. The rod body is connected to a spring, and the other end of the spring is connected to a fixed assembly, allowing the measuring rod to move relative to the fixed assembly and to stretch or compress the spring. An indicating component is connected to the spring. During the spring's extension and contraction, the indicating component moves synchronously with its connection to the spring. The indicating component corresponds to a scale for the user to read. The deformation of the spring can be intuitively determined based on the scale values ​​before and after the indicating component's movement. During measurement, the fixed assembly is pulled, causing the measuring head to move along the axis of the drum from one side to the other. Due to the friction between the measuring head and the surfaces to be measured (drum and washboard), the measuring rod stretches the spring. The indicating assembly moves relative to the fixed assembly under the influence of the spring. If the surfaces to be measured (drum and washboard) are flat, the displacement of the indicating assembly is relatively small and does not change during the movement of the measuring head; that is, the friction force on the measuring head remains unchanged during the movement. However, if the surface to be measured is uneven, the friction force increases when the measuring head passes over the uneven area, causing the spring to stretch further. The displacement of the indicating assembly is relatively large and changes abruptly. Therefore, the presence or absence of the above situation can be used to determine whether the surface to be measured is uneven, and the location of the unevenness can be confirmed based on the current position of the measuring head. By indicating the scale position of the component, the friction force on the measuring head can be determined, and the uneven position can be accurately located. Since the detection rod includes the rod body and the measuring head, the length of the measuring head can be shorter than the width of the drum. The measuring head can contact the surface to be tested of the drum washboard assembly in sequence to locate multiple uneven positions, effectively improving the accuracy of the detection. Attached Figure Description

[0030] Figure 1 This is a disassembled schematic diagram of the overall structure of a cigarette rolling system measuring device according to an embodiment of this application, wherein the measuring head is a cylindrical structure.

[0031] Figure 2 This is a schematic diagram of the overall structure of a cigarette rolling system measuring device according to an embodiment of this application, wherein the measuring head is a plate-shaped structure.

[0032] Figure 3 This is a cross-sectional view of the sleeve in a cigarette-forming system measuring device according to an embodiment of this application, showing a schematic diagram of the internal structure of the sleeve.

[0033] Figure 4 This is a schematic diagram of the structure of the measuring rod in the cigarette rolling system measuring device according to an embodiment of this application, wherein the measuring head is a cylindrical structure.

[0034] Figure 5 This is another structural schematic diagram of the measuring rod in the cigarette rolling system measuring device according to an embodiment of this application, wherein the measuring head is a plate-shaped structure.

[0035] Figure 6 This is a schematic diagram of the drum and washboard assembly.

[0036] Figure 7 This is a schematic diagram illustrating the operation steps of a measurement method for a cigarette misalignment system measuring device according to an embodiment of this application.

[0037] In the diagram, 10 is the drum wheel; 11 is the drum wheel groove; 20 is the washboard assembly; 100 is the measuring rod; 110 is the rod body; 120 is the measuring head; 200 is the spring; 300 is the fixing assembly; 301 is the scale; 310 is the sleeve; 311 is the strip-shaped through hole; 320 is the grip; 321 is the handle; 330 is the ejector pin; 400 is the indicating assembly; 410 is the pointer; 420 is the pin; and 430 is the connector. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] See Figure 1 , Figure 1This paper shows a schematic diagram of the overall structure of a cigarette rolling system measuring device according to an embodiment of the present application. The cigarette rolling system measuring device provided in this application is used to detect the geometric tolerance between the drum 10 and the rolling plate assembly 20. It includes a measuring rod 100, a spring 200, a fixing assembly 300 and an indicating assembly 400. The measuring rod 100 includes a rod body 110 and a measuring head 120 connected to each other. The width of the measuring head 120 in a predetermined direction is greater than the width of the rod body 110 in a predetermined direction, and the predetermined direction is perpendicular to the length direction of the rod body 110. The measuring head 120 is used to clamp between the drum 10 and the washboard assembly 20. One end of the spring 200 is connected to the rod body 110. The fixing assembly 300 is located at the end of the rod body 110 away from the measuring head 120, and the other end of the spring 200 is connected to the fixing assembly 300. The measuring rod 100 can move relative to the fixing assembly 300 to drive the spring 200 to extend and retract. The fixing assembly 300 has multiple scales 301 arranged at intervals along the length direction of the measuring rod 100. The indicating assembly 400 is connected to the spring 200. When the spring 200 extends and retracts, the spring 200 drives the indicating assembly 400 to move relative to the fixing assembly 300, so that the indicating assembly 400 corresponds to different scale positions among the multiple scales 301.

[0045] See Figure 1 In the measuring rod 100, the rod body 110 is a cylindrical structure, and the measuring head 120 is connected to one end of the rod body 110. The width of the measuring head 120 is greater than the width of the rod body 110, so that when the measuring rod 100 is placed between the drum 10 and the washboard assembly 20, the rod body 110 does not contact the drum 10 and the washboard assembly 20. One end of the spring 200 is connected to the end of the rod body 110 away from the measuring head 120, and the other end of the spring 200 is connected to the fixing assembly 300. The measuring rod 100 can move relative to the fixing assembly 300, thereby causing the spring 200 to deform when pulled or compressed, and the spring 200 provides tension to the measuring rod 100. The indicating assembly 400 moves under the drive of the spring 200, and the deformation of the spring 200 can be intuitively displayed according to the position of the scale 301 corresponding to the indicating assembly 400.

[0046] For ease of understanding, when the measuring rod 100 moves relative to the fixed component 300, it pulls the spring 200 to extend by 5 cm. If the indicating component 400 is connected to the end of the spring 200 connected to the rod body 110, the indicating component 400 will move by 5 cm under the influence of the spring 200. If the indicating component 400 is connected at the midpoint of the spring 200, it will move by 2.5 cm under the influence of the spring 200. It should be noted that since the spring 200 extends and contracts uniformly, the overall deformation of the spring 200 can be obtained by multiplying the value by the connection position of the indicating component 400 and the spring 200. For example, if the indicating component 400 is connected at the midpoint of the spring 200, the displacement of the indicating component 400 is doubled, which is the overall deformation of the spring 200. When the spring 200 is not subjected to external force, the scale 301 marked as 0 can be used to visually determine the deformation of the spring 200 based on the scale 301 currently corresponding to the indicator component 400, thereby determining the magnitude of the elastic force of the spring 200 pulling the measuring rod 100.

[0047] It should be noted here that, for reference Figure 6 The outer surface of the drum 10 is provided with multiple spaced drum grooves 11. Cylindrical tobacco is adhered to the drum grooves 11 and rotates with the drum 10 to transport the tobacco. When the tobacco moves with the drum 10 to the right end of the rubbing plate assembly 20, the end of the rubbing plate assembly 20 abuts against the tobacco in the drum groove 11 to push the tobacco out from the drum groove 11 to between the outer wall of the drum 10 and the rubbing plate assembly 20. Driven by the drum 10, the cylindrical tobacco moves towards the left end of the rubbing plate assembly 20 between the outer wall of the drum 10 and the rubbing plate assembly 20. During this process, the tipping paper on the outer wall of the drum 10 is rolled around the outer periphery of the tobacco, completing the cigarette rolling operation to form a cigarette. When the cigarette moves to the left end of the rubbing plate assembly 20, the next drum groove 11 of the drum 10 moves exactly to the left end position of the rubbing plate assembly 20, and the cigarette is adhered to the drum groove 11 and rotates with the drum 10 for transport. Because cigarette manufacturing has dimensional requirements, during the above process, it is essential to ensure the parallelism between the outer wall of the drum 10 and the surface of the rubbing assembly 20 facing the drum 10, and the cylindricity of the inner wall of the drum groove 11 and the surface of the rubbing assembly 20 facing the drum 10, to ensure that the cylindrical tobacco does not deform or become damaged during the process. The above description is merely for illustrative purposes to explain the operation of the drum 10 and the rubbing assembly 20 and does not limit the scope of this application.

[0048] See Figure 1 , Figure 2 and Figure 6In use, the measuring rod 100 is placed between the drum 10 and the washboard assembly 20 along the axial direction of the drum 10. The measuring head 120 is in contact with the drum 10 and the washboard assembly 20 on opposite sides. In the initial state, the measuring head 120 is located on one side of the drum 10. Pulling the fixing component 300 moves the measuring head 120 from one side of the drum 10 to the opposite side of the drum 10, allowing it to slide relative to the drum 10 and the washboard assembly 20. Due to the friction between the drum 10 and the washboard assembly 20, the measuring head 120 moves relative to the fixing component 300. The spring 200 pulls the measuring rod 100 to move. The tension of the spring 200 is equal to the friction force on the measuring head 120. The magnitude of the tension of the spring 200 is determined by reading the scale 301 corresponding to the indicating component 400. During the movement of the measuring head 120, if the surfaces of the drum 10 and the washboard assembly 20 in contact with the measuring head 120 are flat, the friction force experienced by the measuring head 120 will not change significantly during its movement. However, if the surfaces of the drum 10 and the washboard assembly 20 in contact with the measuring head 120 are uneven, i.e., the parallelism or cylindricity (geometric tolerance) does not meet the requirements, the friction force experienced by the measuring head 120 increases when it moves to the uneven area, the deformation of the spring 200 increases, and the displacement of the indicating assembly 400 increases. Therefore, when the fixed assembly 300 is pulled to inspect the drum 10 and the washboard assembly 20, a significant positional change in the indicating assembly 400 confirms that the geometric tolerance of the measuring head 120 is not met. The measuring head 120 repeats the above operation until it has completed the measurement of the entire outer surface of the drum 10 and the side of the washboard assembly 20 facing the drum 10.

[0049] It should be noted that scale 301 can indicate either deformation or the tension of spring 200, depending on the actual application. Furthermore, since the end of spring 200 connected to the fixed component 300 cannot move relative to it, the indicating component 400 can be connected to other positions on spring 200 besides the aforementioned end. This allows the indicating component 400 to move under the influence of spring 200. The further the indicating component 400 is from the aforementioned end of spring 200, the more pronounced the displacement. Therefore, the indicating component 400 is typically connected to the end of spring 200 connected to rod body 110 for easy observation.

[0050] With the above settings, the scale 301 corresponding to the indicator component 400 can intuitively determine whether there are any geometric tolerance defects in the contact surfaces between the drum 10 and the rubbing board component 20 and the tobacco, rather than relying on subjective judgment, thus effectively improving the accuracy of the detection; and can also simultaneously determine the location of unevenness for easy troubleshooting.

[0051] In some embodiments, the indicating component 400 includes a pointer 410 fixedly connected to one of the spring coils of the spring 200, so that the pointer 410 corresponds to different scale positions of the fixed component 300 as the spring 200 extends and retracts.

[0052] See Figure 1 , Figure 2 and Figure 3 The pointer 410 is connected to the end of the spring 200 connected to the rod body 110 or to the middle of the spring 200. It only needs to ensure that the spring 200 can move the pointer 410 when it extends or retracts, allowing the amount of extension or retraction of the spring 200 to be known. When the spring 200 moves the pointer 410, the pointer 410 can correspond to different scale markings 301. With this setup, the pointer 410 moves under the influence of the spring 200, corresponding to different scale markings 301, thus providing a more intuitive understanding of the deformation of the spring 200.

[0053] In some embodiments, the indicating component 400 further includes a pin 420 and a connector 430. The connector 430 is sleeved on the outer periphery of the spring 200 and is fixedly connected to the spring 200 by the pin 420. The pointer 410 is connected to the connector 430 and moves synchronously with the connector 430.

[0054] See Figure 1 , Figure 2 and Figure 3 The connector 430 is a tubular structure, sleeved around the outer periphery of the spring 200. On one hand, the tubular connector 430 restricts the extension and retraction direction of the spring 200, preventing bending and displacement during extension and retraction. On the other hand, the connector 430 protects the spring 200 from damage by external impacts. The connector 430 is fixedly connected to the spring 200 via a pin 420, allowing it to move under the influence of the spring 200. The pointer 410 is fixedly connected to the connector 430, ensuring a linear relationship between the displacement of the pointer 410 and the extension and retraction of the spring 200. This design ensures that the pointer 410 can clearly display the extension and retraction of the spring 200 while protecting the spring 200 from damage and maintaining the overall structural stability of the indicating component 400 and the spring 200.

[0055] In some embodiments, the fixing component 300 includes a sleeve 310 and a gripper 320. The sleeve 310 is sleeved around the outer periphery of the spring 200, and the end of the spring 200 is connected to the sleeve 310. A strip-shaped through hole 311 is formed on the surface of the sleeve 310. The length direction of the strip-shaped through hole 311 is set along the length direction of the spring 200. The pointer 410 is inserted into the strip-shaped through hole 311 and moves along the length direction of the strip-shaped through hole 311 under the drive of the spring 200. Multiple scales 301 are provided on the surface of the sleeve 310 and correspond to different positions along the length direction of the strip-shaped through hole 311. The end of the sleeve 310 away from the measuring rod 100 is connected to the gripper 320.

[0056] See Figure 1 , Figure 2 and Figure 3 The pointer 410 is positioned along the axial direction of the spring 200, which is located inside the sleeve 310. The length direction of the strip-shaped through hole 311 is the same as the extension direction of the spring 200. The strip-shaped through hole 311 can restrict the movement direction of the pointer 410 and prevent the pointer 410 from deviating during movement. Multiple scales 301 are marked at intervals along the length direction of the strip-shaped through hole 311 on the outer wall of the sleeve 310. The scales 301 are positioned on one side of the strip-shaped through hole 311 to facilitate the user's observation of the scales 301 corresponding to the pointer 410.

[0057] The grip 320 is connected to the end of the sleeve 310 away from the measuring rod 100. In use, the user pulls the grip 320 to move the measuring device of this cigarette rolling system to detect the drum 10 and the rolling plate assembly 20. With the above configuration, the grip 320 is easy for the user to hold and is more convenient to use; the sleeve 310 can limit the extension and retraction direction of the spring 200, prevent the spring 200 from bending during extension and retraction, and protect the spring 200 from damage; the strip-shaped through hole 311 allows the pointer 410 to protrude outside the sleeve 310 so that the user can observe the displacement of the pointer 410 and its corresponding scale 301.

[0058] In some embodiments, the fixing assembly 300 further includes a pin 330, one end of which is connected to the grip 320, and the other end of the pin 330 abuts against the pointer 410 when the pointer 410 is located at the end of the strip-shaped through hole 311 away from the measuring rod 100.

[0059] See Figure 1 , Figure 2 and Figure 3The pin 330 is connected to the end of the grip 320 and is used to abut the pointer 410. It should be noted that since this cigarette rolling system measuring device is typically a pull test, the pointer 410 will move towards the measuring rod 100 during testing. In its initial state (i.e., when the spring 200 is not under external force), the pointer 410 is located near the end of the strip-shaped through hole 311 away from the measuring rod 100 (i.e., the "0" mark is located near the end of the strip-shaped through hole 311 away from the measuring rod 100), thus providing ample room for the pointer 410 to move. When the measuring head 120 is pulled out from between the drum 10 and the rolling plate assembly 20, the spring 200 may rebound, or there may be operational errors during use, such as pushing the cigarette rolling system measuring device during testing.

[0060] The above situations would cause the pointer 410 to move excessively away from the measuring rod 100, resulting in the pointer 410 exceeding the "0" mark or even impacting the inner wall of the end of the strip-shaped through hole 311 away from the measuring rod 100. Since one end of the pointer 410 is in contact with the inner wall of the strip-shaped through hole 311, and the other part of the pointer 410 is connected to the spring 200, and the pointer 410 is relatively thin and has low strength, it is prone to breakage when impacted due to the opposite forces acting on different parts of the pointer 410. By setting the ejector pin 330, when the pointer 410 moves to the end of the strip-shaped through hole 311 away from the measuring rod 100, the ejector pin 330 abuts against the pointer 410 to prevent the spring 200 from driving the pointer 410 to impact the inner wall of the strip-shaped through hole 311, thus avoiding damage to the pointer 410.

[0061] In some embodiments, the grip 320 includes a handle 321, one end of which is threaded to the sleeve 310, and the surface of the handle 321 is knurled.

[0062] See Figure 1 , Figure 2 and Figure 3 The grip 320 is a handle 321. One end of the handle 321 has an external thread, and one end of the sleeve 310 has an internal thread, so that the handle 321 and the sleeve 310 are threadedly connected, making the assembly and disassembly of the measuring device of this cigarette rolling system simple and convenient. The surface of the handle 321 is knurled to increase friction and make it easier for the user to grip and use.

[0063] In some embodiments, multiple measuring heads 120 are provided, and the multiple measuring heads 120 have various shapes and can be interchangeably connected to the rod body 110.

[0064] See Figure 4 and Figure 5The measuring head 120 includes cylindrical and plate-shaped structures. The cylindrical measuring head 120 is used to measure the cylindricity between the surface to be measured of the drum 10 and the surface to be measured of the washboard assembly 20. The plate-shaped measuring head 120 is used to measure the parallelism between the surface to be measured of the drum 10 and the surface to be measured of the washboard assembly 20. The measuring head 120 is detachably connected to the rod body 110, so that the measuring head 120 can be replaced as needed for the parameters to be measured without replacing the entire measuring rod 100, making the replacement operation more convenient.

[0065] Combination Figure 7 As shown, another embodiment of this application provides a measurement method applicable to the cigarette stitching system measuring device described above, comprising the following steps:

[0066] Step S1: Heat the washboard assembly 20 to the working temperature.

[0067] Step S2: Adjust the position of the washboard assembly 20 and the drum 10 so that the distance between the surface to be measured of the washboard assembly 20 and the surface to be measured of the drum 10 is greater than the diameter of the measuring head 120.

[0068] Step S3: Place the measuring rod 100 of the cigarette rolling system measuring device between the measuring surface to be measured of the rolling plate assembly 20 and the measuring surface to be measured of the drum 10. The length direction of the measuring rod 100 is set along the axial direction of the drum 10. Control the rolling plate assembly 20 to move closer to the drum 10. When both the measuring surface to be measured of the rolling plate assembly 20 and the measuring surface to be measured of the drum 10 are in contact with the measuring head 120, stop the rolling plate assembly 20 from moving.

[0069] Step S4: Pull the cigarette rolling system measuring device along the axial direction of the drum 10, so that the measuring head 120 moves from one side of the drum 10 to the opposite side of the drum 10.

[0070] Step S5: Move the cigarette rolling system measuring device out from between the rolling plate assembly 20 and the drum 10, control the drum 10 to rotate at a preset angle, and return to execute step S2.

[0071] See Figures 1 to 7Specifically, before measurement, the washboard assembly 20 needs to be heated to its operating temperature to restore the working environment and reduce measurement errors. The washboard assembly 20 is moved to a position close to the drum 10 so that the measuring rod 100 can be placed between the drum 10 and the washboard assembly 20. When the measuring head 120 is in the predetermined position, the washboard assembly 20 moves closer to the drum 10, so that the washboard assembly 20 and the drum 10 slightly clamp the measuring head 120. The measuring device of the cigarette rolling system is pulled at a constant speed, moving the measuring head 120 from one side of the drum 10 to the opposite side. The measuring head 120 is stretched by the friction-induced extension of the spring 200, and the indicating component 400 moves under the influence of the spring 200. When the surfaces of the drum 10 and the washboard assembly 20, which are in contact with the measuring head 120, are flat, the indicating component 400 corresponds to a certain scale 301, defined as the F-value. At this time, the pulling force of the spring 200 on the measuring rod 100 is the pulling force between the measuring head 120 and the flat surface. The acceptable range is set according to the F-value. If the indicating component 400 is within the acceptable range, the measured surface geometric tolerance is considered acceptable. If the indicating component 400 moves beyond the acceptable range during the pulling of the cigarette rolling system measuring device, it indicates that the current contact position of the measuring head 120 is uneven, or that the outer surface of the drum 10 and the surface of the washboard assembly 20 are tilted. The user needs to investigate.

[0072] The measuring head 120 moves from one side of the drum 10 to the other side to complete one test. The drum 10 is controlled to rotate so that other positions on the surface of the drum 10 correspond to the washboard assembly 20. The above steps are repeated to test other positions on the surface of the drum 10. The above steps are repeated until the outer surface of the drum 10 is tested.

[0073] Through the above operations, the geometric tolerance between the drum 10 and the washboard assembly 20 can be intuitively determined based on the position of the indicator component 400. The inspection process is simple and highly accurate.

[0074] In some embodiments, before step S3, a step of installing the cigarette splicing system measuring device is included, which includes:

[0075] The measuring head 120 is selected as the measuring rod 100 with a cylindrical structure.

[0076] The measuring head 120 is coaxially arranged with the rod body 110, and the measuring rod 100, spring 200, indicating component 400 and fixing component 300 are connected in sequence.

[0077] See Figure 1 , Figure 2 , Figure 6 and Figure 7 Specifically, when it is necessary to test the cylindricity between the inner wall of the drum groove 11 and the surface of the washboard assembly 20, the following should be selected: Figure 4The cylindrical measuring head 120 shown is coaxially arranged with the rod body 110 to ensure that the drum 10 and the rubbing plate assembly 20 do not contact the rod body 110 during the measurement process. During testing, the measuring head 120 is placed in the drum groove 11, with the other side of the measuring head 120 abutting against the rubbing plate assembly 20. Pulling the cigarette rolling system measuring device moves the measuring head 120, and the cylindricity between the inner wall of the drum groove 11 and the surface of the rubbing plate assembly 20 is measured using the above measurement method.

[0078] In some embodiments, before step S3, a step of installing the cigarette splicing system measuring device is included, which includes:

[0079] The measuring head 120 is selected as the measuring rod 100 with a plate-like structure.

[0080] The end of the measuring head 120 is connected to the rod body 110. At least one set of opposite sides of the measuring head 120 are arc surfaces. The measuring rod 100, spring 200, indicator assembly 400 and fixing assembly 300 are connected in sequence.

[0081] See Figure 1 , Figure 2 , Figure 6 and Figure 7 Specifically, when it is necessary to test the parallelism between the outer surface of the drum 10 and the surface of the washboard assembly 20, the following should be selected: Figure 5 The plate-shaped measuring head 120 shown has two parallel arc surfaces that align with the side of the drum 10 and the surface of the rubbing assembly 20 facing the drum 10, respectively. During testing, one arc surface of the measuring head 120 is in contact with the side wall of the drum 10, and the other arc surface is in contact with the arc surface of the rubbing assembly 20 facing the drum 10. Pulling the cigarette-rubbing system measuring device moves the measuring head 120, and the parallelism between the side wall of the drum 10 and the surface of the rubbing assembly 20 facing the drum 10 is measured using the above method.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A measuring device for a cigarette rolling system, used to detect the geometric tolerances between the drum and the rolling plate assembly, characterized in that, include: A measuring rod includes a rod body and a measuring head connected to each other. The width of the measuring head in a predetermined direction is greater than the width of the rod body in the predetermined direction. The predetermined direction is perpendicular to the length direction of the rod body. The measuring head is used to clamp between the drum and the washboard assembly. A spring, one end of which is connected to the rod body; A fixing component is located at the end of the rod body away from the measuring head, and the other end of the spring is connected to the fixing component. The measuring rod can move relative to the fixing component to drive the spring to extend and retract. The fixing component has multiple graduations spaced apart along the length of the measuring rod. An indicator component is connected to the spring. When the spring extends or retracts, the spring causes the indicator component to move relative to the fixed component, so that the indicator component corresponds to different scale positions among the multiple scales.

2. The cigarette splicing system measuring device according to claim 1, characterized in that, The indicating component includes a pointer that is fixedly connected to one of the spring coils of the spring, so that the pointer corresponds to different scale positions of the fixed component when the spring extends or retracts.

3. The cigarette splicing system measuring device according to claim 2, characterized in that, The indicating component also includes a pin and a connector. The connector is sleeved on the outer periphery of the spring and is fixedly connected to the spring via the pin. The pointer is connected to the connector and moves synchronously with the connector.

4. The cigarette splicing system measuring device according to claim 2, characterized in that, The fixing component includes a sleeve and a gripper. The sleeve is fitted around the outer periphery of the spring, and the end of the spring is connected to the sleeve. A strip-shaped through hole is formed on the surface of the sleeve, and the length direction of the strip-shaped through hole is set along the length direction of the spring. The pointer is inserted into the strip-shaped through hole and moves along the length direction of the strip-shaped through hole under the action of the spring. A plurality of scales are set on the surface of the sleeve and correspond to different positions along the length direction of the strip-shaped through hole. The end of the sleeve away from the measuring rod is connected to the gripper.

5. The cigarette splicing system measuring device according to claim 4, characterized in that, The fixing component also includes a pin, one end of which is connected to the gripper. When the pointer is located at the end of the strip-shaped through hole away from the measuring rod, the other end of the pin abuts against the pointer.

6. The cigarette splicing system measuring device according to claim 4, characterized in that, The grip includes a handle, one end of which is threaded to the sleeve, and the surface of the handle is knurled.

7. The cigarette splicing system measuring device according to claim 1, characterized in that, The measuring head is provided in multiple ways, and the multiple measuring heads have various shapes, and can be interchangeably connected to the rod body.

8. A measurement method applicable to the cigarette splicing system measuring device as described in any one of claims 1-7, characterized in that, Includes the following steps: Step S1: Heat the washboard assembly to the operating temperature; Step S2: Adjust the position of the washboard assembly and the drum so that the distance between the surface to be measured of the washboard assembly and the surface to be measured of the drum is greater than the diameter of the measuring head; Step S3: Place the measuring rod of the cigarette rolling system measuring device between the measuring surface of the rolling plate assembly and the measuring surface of the drum, with the length direction of the measuring rod along the axial direction of the drum; control the rolling plate assembly to move closer to the drum; when both the measuring surface of the rolling plate assembly and the measuring surface of the drum are in contact with the measuring head, stop the rolling plate assembly from moving. Step S4: Pull the cigarette splicing system measuring device along the axial direction of the drum to move the measuring head from one side of the drum to the opposite side of the drum; Step S5: Move the measuring device of the cigarette rolling system out from between the rolling plate assembly and the drum, control the drum to rotate at a preset angle, and return to execute step S2.

9. The measurement method as described in claim 8, characterized in that, Before step S3, the method further includes the step of installing the cigarette splicing system measuring device, which includes: A measuring rod with a cylindrical measuring head is selected. The measuring head is coaxially arranged with the rod body, and the measuring rod, the spring, the indicating component and the fixing component are connected in sequence.

10. The measurement method according to claim 8, characterized in that, Before step S3, the method further includes the step of installing the cigarette splicing system measuring device, which includes: The measuring rod selected is a plate-shaped measuring head; The end of the measuring head is connected to the rod body, and at least one set of opposite sides of the measuring head are arc surfaces. The measuring rod, the spring, the indicating component and the fixing component are connected in sequence.

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