Cigarette measuring device and measuring method

Abstract

The invention relates to the technical field of physical quantity measurement of cigarettes, and provides a cigarette measuring device and a measuring method. The method comprises the steps of obtaining cigarette mark information; the MAP is inquired, theoretical contour information of the cigarette is determined, and the relative position of the first laser measurer and the first supporting piece and the relative position of the second laser measurer and the first supporting piece are adjusted according to length information in the theoretical contour information; the actual length L < actual > and the actual circumference size C < actual > of the cigarette are obtained through measurement; comparing the L total real with the L total principle, and if the difference between the L total real and the L total principle is greater than the L threshold, sending out a second signal; and C < real > and C < principle > are compared, if C < real >-C < principle > > C < threshold, a third signal is sent out, and if L < total < real >-L < total > < L < threshold and C < real >-C < principle > < C < threshold, a first signal is sent out. Therefore, the most accurate test position can be determined according to the characteristics of cigarettes of different brands, so that the measurement accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of physical quantity measurement of cigarettes, and in particular to a cigarette measuring device and a measuring method. Background Art

[0002] The comprehensive test bench currently in use can be simply modified to measure cigarettes of different specifications, such as regular cigarettes, medium cigarettes and slim cigarettes. These types of cigarettes have different circumferential diameters and lengths. Some cigarettes have the same length, but their filter segment lengths are different. For example, the length of slim cigarettes is 97mm and the filter segment length is 30mm; the length of medium cigarettes is 88m and the filter rod length is 30mm; the length of regular cigarettes is 84mm, and the filter segment lengths are 24mm and 30mm.

[0003] The principle of measuring the circumference of a cigarette: the cigarette falls into the circular support plate of the unit to hold the cigarette, and the cigarette is vertically adsorbed by negative pressure. The motor rotates this part for one circle to measure the average diameter d of the cigarette, and then the data processing system calculates the circumference of the cigarette according to the formula C=πd; The principle of length measurement L: a parallel light beam is used to project and scan the end of the cigarette to form a light signal, and the photoelectric receiving device collects the data processing system to give the length value of the cigarette.

[0004] The circumference and length test units of the comprehensive test bench are designed to be integrated in the same physical space; according to the technical characteristics of the laser, the measurement accuracy of the laser in the middle position is the highest. When measuring the length of a cigarette, in order to improve the accuracy of the length measurement, the end of the cigarette needs to be adjusted to the middle position of the laser for measurement. When measuring the circumference, due to the principle of "three deep and three shallow" of the chopping knife disk of the leveler of the rolling equipment, the amount of tobacco filling near the filter section of a cigarette is the smallest, so the part of the cigarette near the filter section is the thinnest, and the filling amount of the middle section of the cigarette after removing the filter section is medium, and the circumference of this part of the cigarette is moderate; and the tobacco filling amount at the end of the cigarette is the largest, and the circumference of this part is the thickest. When measuring a cigarette, it is required to remove the filter section of a cigarette and measure the middle part of the cigarette, so it is necessary to adjust the middle section of the circumference laser to measure the middle section of the cigarette after removing the mouthpiece.

[0005] The circumference and length units of the existing comprehensive test bench are fixed and cannot be adjusted. The only way to prevent the laser of the length unit from exceeding the range is to adjust the height of the circumference support plate. The circumference measurement cannot guarantee the middle section of the cigarette without the mouthpiece, resulting in insufficient measurement accuracy.

[0006] Therefore, there is an urgent need for a cigarette measuring device and a measuring method to solve the above technical problems. Summary of the invention

[0007] The purpose of the present invention is to provide a cigarette measuring device and a measuring method, which can determine the most accurate test position according to the characteristics of cigarettes of different brands, thereby improving the accuracy of measurement.

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] A cigarette measuring device, comprising:

[0010] frame;

[0011] The circumference measuring assembly comprises a first lifting mechanism, a first support member, a second support member and a first laser measuring device. One end of the first lifting mechanism is fixed to the frame, and the other end can carry the first support member to move along a first direction. The first support member is used to support one end of the filter segment of the cigarette. The second support member is fixed to the frame and is used to install the first laser measuring device. The first laser measuring device is used to obtain the circumference information C of the cigarette. 实 ;

[0012] The length measuring assembly comprises a second lifting mechanism, a third support member and a second laser measuring device. One end of the second lifting mechanism is fixed to the frame, and the other end can carry the third support member to move along the first direction. The third support member is equipped with the second laser measuring device for obtaining the length information L of the cigarette. 实 ;

[0013] A clamping member, mounted on the second supporting member, capable of fixing the cigarette in the first direction and driving the cigarette to rotate along its own axis;

[0014] The axial direction of the cigarette is parallel to the first direction.

[0015] As a preferred technical solution of the above-mentioned cigarette measuring device, the above-mentioned first lifting mechanism includes a first motor, a first threaded rod and a first guide member, the above-mentioned first motor is fixed to the above-mentioned frame, the output end of the above-mentioned first motor is transmission connected to the above-mentioned first threaded rod, the axis of the above-mentioned first threaded rod is parallel to the above-mentioned first direction, the above-mentioned first guide member is fixed to the above-mentioned frame, the above-mentioned first support member is threadedly connected to the above-mentioned first threaded rod and is slidably connected to the above-mentioned first guide member, and the above-mentioned first guide member can limit the above-mentioned first support member from rotating with the above-mentioned first threaded rod.

[0016] As a preferred technical solution of the above-mentioned cigarette measuring device, the above-mentioned first laser measuring device includes a first signal transmitting end and a first signal receiving end, and the above-mentioned first signal transmitting end and the above-mentioned first signal receiving end are respectively located on opposite sides of the above-mentioned cigarette in the radial direction.

[0017] As a preferred technical solution of the above-mentioned cigarette measuring device, it also includes a loading tube and a unloading tube, both of which are installed on the above-mentioned frame. The above-mentioned loading tube and the above-mentioned unloading tube are coaxially arranged and spaced apart in the above-mentioned first direction. The above-mentioned first support member can be selectively located between the above-mentioned loading tube and the above-mentioned unloading tube, and the above-mentioned cigarette can slide in the above-mentioned loading tube or the above-mentioned unloading tube.

[0018] As a preferred technical solution of the above-mentioned cigarette measuring device, the above-mentioned first support member includes a first supporting part and a first connecting part, the above-mentioned first connecting part is threadedly connected to the above-mentioned first threaded rod, and the above-mentioned first supporting part is rotatably connected to the above-mentioned first connecting part, and can be selectively rotated between the above-mentioned loading tube and the above-mentioned unloading tube to intercept and support the above-mentioned cigarette.

[0019] As a preferred technical solution of the above-mentioned cigarette measuring device, the above-mentioned second lifting mechanism includes a second motor, a second threaded rod and a second guide member. The above-mentioned second motor is fixed to the above-mentioned frame, and the output end of the above-mentioned second motor is transmission-connected to the above-mentioned second threaded rod. The above-mentioned second guide member is fixed to the above-mentioned frame, and the above-mentioned third support member is threadedly connected to the above-mentioned second threaded rod and is slidingly connected to the above-mentioned second guide member. The above-mentioned second guide member is used to limit the above-mentioned third support member from rotating with the above-mentioned second threaded rod.

[0020] As a preferred technical solution of the above-mentioned cigarette measuring device, the above-mentioned third support member includes a second support portion and a second connecting portion, the above-mentioned second connecting portion is threadedly connected to the above-mentioned second threaded rod and is slidably connected to the above-mentioned second guide member, the above-mentioned second support portion is installed with the above-mentioned second laser measuring device, the above-mentioned second support portion is provided with a waist-shaped hole, the above-mentioned second support portion is connected to the above-mentioned second connecting portion by a threaded fastener, and the above-mentioned threaded fastener can move in the above-mentioned waist-shaped hole along the second direction;

[0021] The first direction is perpendicular to the second direction.

[0022] As a preferred technical solution of the above-mentioned cigarette measuring device, the above-mentioned first laser measuring device includes a first signal transmitting end and a first signal receiving end, and the above-mentioned first signal transmitting end and the above-mentioned first signal receiving end are respectively located on two opposite sides of the above-mentioned cigarette in the radial direction;

[0023] The second laser measuring device comprises a second signal transmitting end and a second signal receiving end, and the second signal transmitting end and the second signal receiving end are respectively located on two opposite sides of the radial direction of the cigarette;

[0024] The first signal transmitting end and the first signal receiving end determine a first straight line, the second signal transmitting end and the second signal receiving end determine a second straight line, and the first straight line and the second straight line are at different positions.

[0025] A measuring method is also provided, which is applicable to the above-mentioned cigarette measuring device, and the steps include:

[0026] S1. Obtaining the brand information of the above cigarettes;

[0027] S2. According to the brand information, query MAP to determine the theoretical profile information of the cigarette; the MAP records the theoretical profile information of the cigarette corresponding to the brand information one by one, and the theoretical profile information includes the theoretical total length L of the cigarette. 总理 , the length L of the filter section of the above cigarette 滤理 And the circumference of the cigarette C 理 ;

[0028] S3, adjusting the relative position of the first laser measuring device and the first supporting member, and the relative position of the second laser measuring device and the first supporting member respectively according to the length information;

[0029] S4. Obtaining the actual total length L of the cigarette 总实 , and the actual circumference size C 实 ;

[0030] S5.1, compared with L 总实 With L 总理 , if, |L 总实 -L 总理 |>△L 阈 , then the second signal is issued, △L 阈 is the allowable error range of the processing length;

[0031] S5.2, Comparison C 实 With C 理 , if, |C 实 -C 理 |>△C 阈 , then the third signal is issued, △C 阈 is the allowable error range of the machining circumference;

[0032] S5.3, if |L 总实 -L 总理 |<△L 阈 And |C 实 -C 理 |<△C 阈 , then the first signal is issued.

[0033] As a preferred technical solution of the above measurement method, it also includes:

[0034] S5.4, if L is obtained from a plurality of consecutive cigarettes 总实 is a fixed value and / or C 实 If it is a fixed value, the fourth signal is issued.

[0035] Beneficial effects of the present invention:

[0036] When in use, the user first obtains the brand information of the cigarette. Exemplarily, the cigarette measuring device also includes a scanner, which can recognize the barcode or QR code with brand information printed on the cigarette packaging.

[0037] According to the brand information of the cigarette, query MAP to obtain the theoretical profile information of the cigarette. According to the information recorded therein, the theoretical total length L of the cigarette 总理 and the length L of the filter section of the cigarette 滤理 , adjust the distance between the first laser measuring device, the second laser measuring device and the first supporting member in the first direction. Exemplarily, since the first laser measuring device is installed on the second supporting member, the second supporting member and the frame are fixed and kept stationary, the first lifting mechanism is started, and the distance H1 between the first supporting member and the first laser measuring device in the first direction is adjusted to meet, The second lifting mechanism is started so that the distance H2 between the second laser measuring device and the first supporting member in the first direction satisfies H2 = L 总理 , place the cigarette on the first support, and lock the cigarette in the first direction through the clamp, at this time, the 1 / 2 of the burning section of the cigarette faces the first laser measuring device, and the end of the cigarette away from the filter section faces the second laser measuring device. The clamp drives the cigarette to rotate around its own axis, and the first laser measuring device obtains the average diameter d of the cigarette. According to the formula C=πd, the actual circumference size C of the cigarette is obtained. 实 The second laser measuring device can also obtain the actual total length value L of the cigarette. 总实 .

[0038] By comparing C 实 With C 理 If the absolute value of the difference between the two is greater than the allowable error range of processing △C 阈 , △C 阈 >0, the cigarette measuring device sends a third signal to remind the user that the circumferential size of the cigarette does not meet the factory requirements and to check the corresponding processing flow.

[0039] By comparing L 总实 With L 总理 If the absolute value of the difference between the two is greater than the allowable error range of processing △L 阈 , △L 阈 >0, the cigarette measuring device sends a second signal to remind the user that the length of the cigarette does not meet the factory requirements and to detect the corresponding processing flow.

[0040] If, |L 总实 -L 总理 |<△L 阈 And |C 实 -C理 |<△C 阈 , it is determined that the physical value of the cigarette meets the factory requirements, and a first signal is sent out.

[0041] In this way, the corresponding physical quantity of the cigarette is always obtained at the best measuring position of the cigarette, which can improve the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0043] Figure 1 is a schematic structural diagram of a cigarette measuring device provided by an embodiment of the present invention;

[0044] Figure 2 It is a top view of the cigarette measuring device provided in an embodiment of the present invention.

[0045] In the figure:

[0046] X, first direction; Y, second direction;

[0047] 100, rack;

[0048] 200, circumference measurement assembly; 211, first motor; 212, first threaded rod; 213, first guide member; 220, first support member; 221, first support portion; 222, first connecting portion; 230, second support member; 241, first signal receiving end; 242, first signal transmitting end; 250, first connecting member; 260, second connecting member;

[0049] 300, length measuring assembly; 311, second motor; 312, second threaded rod; 313, second guide member; 320, third support member; 321, second support portion; 322, second connecting portion; 331, second signal transmitting end; 332, second signal receiving end; 340, third connecting member;

[0050] 410, feeding pipe; 420, unloading pipe. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0052] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0055] like Figure 1 and Figure 2 As shown, the present invention provides a cigarette measuring device, including a frame 100, a circumference measuring assembly 200, a length measuring assembly 300 and a clamping member. The circumference measuring assembly 200 includes a first lifting mechanism, a first support member 220, a second support member 230 and a first laser measuring device. One end of the first lifting mechanism is fixed to the frame 100, and the other end can carry the first support member 220 to move along the first direction X. The first support member 220 is used to support one end of the filter section of the cigarette. The second support member 230 is fixed to the frame 100 and is used to install the first laser measuring device. The first laser measuring device is used to obtain the circumference information C of the cigarette. 实 The length measuring assembly 300 includes a second lifting mechanism, a third support member 320 and a second laser measuring device. One end of the second lifting mechanism is fixed to the frame 100, and the other end can carry the third support member 320 to move along the first direction X. The third support member 320 is equipped with a second laser measuring device for obtaining the length information L of the cigarette. 实The clamping member is installed on the second support member 230, which can fix the cigarette in the first direction X and drive the cigarette to rotate along its own axis; the axial direction of the cigarette is parallel to the first direction X.

[0056] A measuring method is also provided, which is applicable to the above-mentioned cigarette measuring device, and the steps include:

[0057] S1. Obtaining brand information of cigarettes;

[0058] S2. According to the brand information, query MAP to determine the theoretical outline information of the cigarette; MAP records the theoretical outline information of the cigarette corresponding to the brand information, and the theoretical outline information includes the theoretical total length L of the cigarette. 总理 , the length of the filter section of the cigarette L 滤理 And the circumference of the cigarette C 理 ;

[0059] S3, adjusting the relative positions of the first laser measuring device and the first supporting member 220, and the relative positions of the second laser measuring device and the first supporting member 220, respectively, according to the length information;

[0060] S4. Obtaining the actual total length L of the cigarette 总实 , and the actual circumference size C 实 ;

[0061] S5.1, compared with L 总实 With L 总理 , if, |L 总实 -L 总理 |>△L 阈 , then the second signal is issued, △L 阈 is the allowable error range of the processing length;

[0062] S5.2, Comparison C 实 With C 理 , if, |C 实 -C 理 |>△C 阈 , then the third signal is issued, △C 阈 is the allowable error range of the machining circumference;

[0063] S5.3, if |L 总实 -L 总理 |<△L 阈 And |C 实 -C 理 |<△C 阈 , then the first signal is issued.

[0064] Exemplarily, the cigarette includes a filter section and a combustion section, the filter section and the combustion section are coaxially arranged and fixed in sequence, and the total length of the cigarette is L 总 , satisfying L总 =L 滤 +L 燃 In the test, it is considered that the circumference size at 1 / 2 of the burning section of the cigarette in the axial direction is average and most representative, and this is taken as the best position to measure the circumference size of the cigarette. The end of the cigarette away from the filter section is taken as the best position to measure the length size of the cigarette.

[0065] Specifically, when in use, the user first obtains the brand information of the cigarette. Exemplarily, the cigarette measuring device also includes a scanner, which can recognize the barcode or QR code with brand information printed on the cigarette packaging.

[0066] According to the brand information of the cigarette, query MAP to obtain the theoretical profile information of the cigarette. According to the information recorded therein, the theoretical total length L of the cigarette 总理 and the length L of the filter section of the cigarette 滤理 , adjust the distance between the first laser measuring device, the second laser measuring device and the first supporting member 220 in the first direction X. Exemplarily, since the first laser measuring device is mounted on the second supporting member 230, the second supporting member 230 and the frame 100 are fixed and kept stationary, the first lifting mechanism is started, and the distance H1 between the first supporting member 220 and the first laser measuring device in the first direction X is adjusted to meet, The second lifting mechanism is started so that the distance H2 between the second laser measuring device and the first supporting member 220 in the first direction X satisfies H2=L 总理 , place the cigarette on the first support 220, and lock the cigarette in the first direction X through the clamping member, at this time, the 1 / 2 of the burning section of the cigarette faces the first laser measuring device, and the end of the cigarette away from the filter section faces the second laser measuring device. The clamping member drives the cigarette to rotate around its own axis, and the first laser measuring device obtains the average diameter d of the cigarette. According to the formula C=πd, the actual circumference size C of the cigarette is obtained. 实 The second laser measuring device can also obtain the actual length value L of the cigarette 实 .

[0067] By comparing C 实 With C 理 If the absolute value of the difference between the two is greater than the allowable error range of processing △C 阈 , △C 阈 >0, the cigarette measuring device sends a third signal to remind the user that the circumferential size of the cigarette does not meet the factory requirements and to check the corresponding processing flow.

[0068] By comparing L 总实 With L 总理 If the absolute value of the difference between the two is greater than the allowable error range of processing △L 阈 , △L 阈>0, the cigarette measuring device sends a second signal to remind the user that the length of the cigarette does not meet the factory requirements and to detect the corresponding processing flow.

[0069] If, |L 总实 -L 总理 |<△L 阈 And |C 实 -C 理 |<△C 阈 , it is determined that the physical value of the cigarette meets the factory requirements, and a first signal is sent out.

[0070] Further, the first laser measuring device and / or the second laser measuring device includes a measurement advantage interval and a measurement disadvantage interval. For example, the second laser measuring device can receive a signal with a length D 总 If the middle area is more sensitive to light signals than the areas on both sides, the middle area is considered to be a measurement advantage interval, while the areas on both sides are measurement disadvantage intervals. When adjusting the second laser measuring device and the first support member 220, aligning the end of the cigarette facing away from the filter segment with the measurement advantage interval of the second laser measuring device can further improve the measurement accuracy.

[0071] Measurement methods also include:

[0072] S5.4, if L is obtained from multiple consecutive cigarettes 总实 is a fixed value and / or C 实 If it is a fixed value, the fourth signal is issued.

[0073] Exemplarily, the cigarette measuring device can measure n cigarettes in the same inspection batch. If the measurement data of m consecutive cigarettes are completely consistent, the cigarette measuring device sends a fourth signal to prompt the user that the first laser measuring device and / or the second laser measuring device fails and the measurement result is distorted.

[0074] Optionally, the first lifting mechanism includes a first motor 211, a first threaded rod 212 and a first guide member 213. The first motor 211 is fixed to the frame 100, the output end of the first motor 211 is transmission-connected to the first threaded rod 212, the axis of the first threaded rod 212 is parallel to the first direction X, the first guide member 213 is fixed to the frame 100, the first support member 220 is threadedly connected to the first threaded rod 212 and is slidingly connected to the first guide member 213, and the first guide member 213 can limit the first support member 220 from rotating with the first threaded rod 212.

[0075] Exemplarily, the first motor 211 includes a shell and an output shaft, the shell of the first motor 211 is relatively fixed to the frame 100, the axis of the output shaft of the first motor 211 is parallel to the first direction X, and is transmitted to the first threaded rod 212, and can drive the first threaded rod 212 to rotate around the axis of the first threaded rod 212; in this embodiment, the first guide member 213 is fixed to the shell of the first motor 211 through the first connecting member 250, so that the first guide member 213 is relatively fixed to the frame 100, and the first guide member 213 is provided with a limiting hole along the first direction X, and the limiting hole is a polygon; the first support member 220 is provided with an internal threaded hole, the first threaded rod 212 is inserted into the internal threaded hole and is threadedly connected to the first support frame, the first support member 220 is inserted into the limiting hole, and the circumferential outer contour of the first support member 220 is a polygon corresponding to the inner contour of the limiting hole. In this way, when the first motor 211 drives the first threaded rod 212 to rotate, the first support member 220 cannot rotate with the first threaded rod 212 due to the restriction of the first guide member 213, and can only move along the first direction X. In this way, the distance between the first support member 220 and the second support member 230 is adjusted in the first direction X.

[0076] Furthermore, an encoder is installed on the output shaft of the first motor 211 .

[0077] Furthermore, the first guide member 213 is fixed to the second support member 230 via the second connecting member 260 .

[0078] Furthermore, the second connecting member 260 is marked with a scale, and a pointer is provided on a side of the first supporting member 220 facing the second connecting member 260 , the pointer points to the scale, and the scale can indicate a relative distance in the first direction X between the first supporting member 220 and the second supporting member 230 .

[0079] Optionally, the first laser measuring device includes a first signal emitting end 242 and a first signal receiving end 241, and the first signal emitting end 242 and the first signal receiving end 241 are respectively located on two opposite sides of the cigarette in the radial direction.

[0080] In this way, measuring cigarettes through optical sensors can avoid direct contact with the cigarettes, which would cause deformation of the cigarettes and affect the measurement accuracy.

[0081] It should be noted that cigarettes are filled with tobacco leaves. In order to keep the cigarettes lit, there are certain requirements for their air permeability, that is, there must be gaps between the tobacco leaves. Therefore, when the cigarettes are squeezed, the filling density of the tobacco leaves is changed, which will inevitably cause the cigarettes to deform.

[0082] Optionally, the cigarette measuring device also includes a loading tube 410 and a loading tube 420, both of which are installed on the frame 100. The loading tube 410 and the loading tube 420 are coaxially arranged and spaced apart in the first direction X. The first support member 220 can be selectively located between the loading tube 410 and the loading tube 420, and the cigarette can slide in the loading tube 410 or the loading tube 420.

[0083] Exemplarily, the two axial ends of the feeding tube 410 are respectively marked as the first port and the second port, and the two axial ends of the feeding tube 420 are respectively marked as the third port and the fourth port. The first port of the feeding tube 410 is the inlet of the cigarette measuring device, and the cigarette to be measured is put into the cigarette measuring device from the first port. The distance between the second port and the third port in the first direction X is H, and H>L is satisfied. max , L max is the maximum length of the cigarette. After the cigarette slides out from the second port, it falls on the first support member 220 and is partially inserted in the clamp. After the measurement is completed, the first support member 220 moves out from between the loading tube 410 and the unloading tube 420 to avoid the falling trajectory of the cigarette. After the clamp is unlocked, the cigarette can enter the unloading tube 420 from the third port and be discharged from the fourth port. The fourth port is the outlet of the cigarette measuring device.

[0084] Furthermore, the diameter of the second port of the feeding pipe 410 is smaller than L min , L min is the minimum length of the cigarette, so that the axis of the cigarette discharged from the feeding tube 410 can be prevented from being perpendicular to the first direction X, so that it is difficult for the clamping member to clamp it.

[0085] Optionally, the first support member 220 includes a first support portion 221 and a first connecting portion 222, the first connecting portion 222 is threadedly connected to the first threaded rod 212, the first support portion 221 is rotatably connected to the first connecting portion 222, and can be selectively rotated between the loading tube 410 and the unloading tube 420 to intercept and support the cigarette.

[0086] Optionally, the second lifting mechanism includes a second motor 311, a second threaded rod 312 and a second guide member 313. The second motor 311 is fixed to the frame 100, the output end of the second motor 311 is transmission-connected to the second threaded rod 312, the second guide member 313 is fixed to the frame 100, the third support member 320 is threadedly connected to the second threaded rod 312, and is slidingly connected to the second guide member 313, and the second guide member 313 is used to limit the third support member 320 from rotating with the second threaded rod 312.

[0087] Exemplarily, the second motor 311 includes a shell and an output shaft, the shell of the second motor 311 remains relatively fixed to the body, the axis of the output shaft of the second motor 311 is parallel to the first direction X, and is transmitted to the second threaded rod 312, and can drive the second threaded rod 312 to rotate around the axis of the second threaded rod 312; in this embodiment, the second guide member 313 is fixed to the shell of the second motor 311 through the third connecting member 340, so that the second guide member 313 is relatively fixed to the frame 100, so that when the second motor 311 drives the second threaded rod 312 to rotate, the second support member 230 cannot rotate with the second threaded rod 312 under the restriction of the second guide member 313, and can only move along the first direction X, and adjust the distance between the second support member 230 and the second support member 230 in the first direction X.

[0088] Optionally, the third support member 320 includes a second support portion 321 and a second connecting portion 322, the second connecting portion 322 is threadedly connected to the second threaded rod 312 and is slidably connected to the second guide member 313, the second support portion 321 is installed with a second laser measurer, the second support portion 321 is provided with a waist-shaped hole, the second support portion 321 and the second connecting portion 322 are connected by a threaded fastener, and the threaded fastener can move along the second direction Y in the waist-shaped hole; the first direction X is perpendicular to the second direction Y.

[0089] With such arrangement, when it is necessary to adjust the distance between the second laser measuring device and the cigarette along the second direction Y, the threaded fastener is loosened so that the second connecting portion 322 and the second supporting portion 321 can slide relative to each other. After adjusting to the target position, the threaded fastener is retightened to maintain the stability of the second connecting portion 322 and the second supporting portion 321.

[0090] Optionally, the first laser meter includes a first signal emitting terminal 242 and a first signal receiving terminal 241, and the first signal emitting terminal 242 and the first signal receiving terminal 241 are respectively located on opposite sides of the radial direction of the cigarette; the second laser meter includes a second signal emitting terminal 331 and a second signal receiving terminal 332, and the second signal emitting terminal 331 and the second signal receiving terminal 332 are respectively located on opposite sides of the radial direction of the cigarette; the first signal emitting terminal 242 and the first signal receiving terminal 241 determine a first straight line, and the second signal emitting terminal 331 and the second signal receiving terminal 332 determine a second straight line, and the first straight line and the second straight line are out of position.

[0091] With such a configuration, both the length measurement and the circumference measurement of the cigarette are performed using optical sensors. The first signal receiving end 241, the first signal transmitting end 242, the second signal receiving end 332 and the second signal transmitting end 331 are distributed in an X shape, which can prevent the signal emitted by the first signal transmitting end 242 from being acquired by the second signal receiving end 332, and / or the signal emitted by the second signal transmitting end 331 from being acquired by the first signal receiving end 241, and the mutual influence between the signals leads to inaccurate measurement values.

[0092] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cigarette measuring device, characterized in that: include: Rack(100); A circumference measurement assembly (200) comprises a first lifting mechanism, a first support member (220), a second support member (230) and a first laser measuring device, wherein one end of the first lifting mechanism is fixed to the frame (100), and the other end is capable of carrying the first support member (220) to move along a first direction (X), the first support member (220) is used to support one end of a filter segment of a cigarette, the second support member (230) is fixed to the frame (100) and is used to install the first laser measuring device, and the first laser measuring device is used to obtain circumference information C of the cigarette 实 ; The length measuring assembly (300) comprises a second lifting mechanism, a third support member (320) and a second laser measuring device, wherein one end of the second lifting mechanism is fixed to the frame (100), and the other end is capable of carrying the third support member (320) to move along the first direction (X), and the third support member (320) is installed with the second laser measuring device for obtaining the length information L of the cigarette. 实 ; a clamping member, mounted on the second supporting member (230), capable of fixing the cigarette in the first direction (X) and capable of driving the cigarette to rotate along its own axis; The axial direction of the cigarette is parallel to the first direction (X).

2. The cigarette measuring device according to claim 1, characterized in that: The first lifting mechanism comprises a first motor (211), a first threaded rod (212) and a first guide member (213); the first motor (211) is fixed to the frame (100); the output end of the first motor (211) is transmission-connected to the first threaded rod (212); the axis of the first threaded rod (212) is parallel to the first direction (X); the first guide member (213) is fixed to the frame (100); the first support member (220) is threadedly connected to the first threaded rod (212) and is slidably connected to the first guide member (213); the first guide member (213) can limit the first support member (220) from rotating along with the first threaded rod (212).

3. The cigarette measuring device according to claim 1, characterized in that: The first laser measuring device comprises a first signal emitting end (242) and a first signal receiving end (241), wherein the first signal emitting end (242) and the first signal receiving end (241) are respectively located on two opposite sides of the cigarette in the radial direction.

4. The cigarette measuring device according to claim 2, characterized in that: It also includes a loading tube (410) and a loading tube (420), both of which are installed on the frame (100), the loading tube (410) and the loading tube (420) are coaxially arranged and spaced apart in the first direction (X), the first support member (220) can be selectively located between the loading tube (410) and the loading tube (420), and the cigarette can slide in the loading tube (410) or the loading tube (420).

5. The cigarette measuring device according to claim 4, characterized in that: The first supporting member (220) includes a first supporting portion (221) and a first connecting portion (222), the first connecting portion (222) being threadedly connected to the first threaded rod (212), the first supporting portion (221) being rotatably connected to the first connecting portion (222), and being able to selectively rotate between the loading tube (410) and the unloading tube (420) to intercept and support the cigarette.

6. The cigarette measuring device according to claim 1, characterized in that: The second lifting mechanism comprises a second motor (311), a second threaded rod (312) and a second guide member (313); the second motor (311) is fixed to the frame (100); the output end of the second motor (311) is transmission-connected to the second threaded rod (312); the second guide member (313) is fixed to the frame (100); the third support member (320) is threadedly connected to the second threaded rod (312) and is slidably connected to the second guide member (313); the second guide member (313) is used to limit the third support member (320) from rotating along with the second threaded rod (312).

7. The cigarette measuring device according to claim 6, characterized in that: The third support member (320) comprises a second support portion (321) and a second connection portion (322), the second connection portion (322) being threadedly connected to the second threaded rod (312) and slidably connected to the second guide member (313), the second support portion (321) being installed with the second laser measuring device, the second support portion (321) being provided with a waist-shaped hole, the second support portion (321) being connected to the second connection portion (322) by a threaded fastener, and the threaded fastener being able to move in the waist-shaped hole along the second direction (Y); The first direction (X) is perpendicular to the second direction (Y).

8. The cigarette measuring device according to claim 7, characterized in that: The first laser measuring device comprises a first signal emitting end (242) and a first signal receiving end (241), wherein the first signal emitting end (242) and the first signal receiving end (241) are respectively located on two opposite sides of the cigarette in a radial direction; The second laser measuring device comprises a second signal emitting end (331) and a second signal receiving end (332), wherein the second signal emitting end (331) and the second signal receiving end (332) are respectively located on two opposite sides of the cigarette in the radial direction; The first signal transmitting end (242) and the first signal receiving end (241) determine a first straight line, the second signal transmitting end (331) and the second signal receiving end (332) determine a second straight line, and the first straight line and the second straight line are at different positions.

9. A measuring method, applicable to the cigarette measuring device according to any one of claims 1 to 8, characterized in that the steps include: S1. Obtaining the brand information of the cigarette; S2. According to the brand information, query MAP to determine the theoretical profile information of the cigarette; The MAP records the theoretical profile information of the cigarette corresponding to the brand information one by one, and the theoretical profile information includes the theoretical total length L of the cigarette. 总理 , the length L of the filter section of the cigarette 滤理 And the circumferential dimension C of the cigarette 理 ; S3, adjusting the relative position of the first laser measuring device and the first supporting member (220), and the relative position of the second laser measuring device and the first supporting member (220) respectively according to the length information; S4. Obtaining the actual total length L of the cigarette 总实 , and the actual circumference size C 实 ; S5.1, compared with L 总实 With L 总理 , if, |L 总实 -L 总理 |>△L 阈 >0, the second signal is issued, △L 阈 is the allowable error range of the processing length; S5.2, Comparison C 实 With C 理 , if, |C 实 -C 理 |>△C 阈 >0, the third signal is issued, △C 阈 is the allowable error range of the machining circumference; S5.3, if |L 总实 -L 总理 |<△L 阈 And |C 实 -C 理 |<△C 阈 , then the first signal is issued.

10. The measuring method according to claim 9, characterized in that: Also includes: S5.4, if L is obtained from a plurality of consecutive cigarettes 总实 is a fixed value and / or C 实 If it is a fixed value, the fourth signal is issued.

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